common theme. is i doubt there is going to be any way to get rid of "weight" and needing to lift some weight some were some place.
the only thing i think of that might remove most amount of weight and physically man handling the weight might be...
using water. and getting say a 30 gallon sprayer pull behind trailer or like. that you could hook up to a golf cart or utv or atv, use the sprayer pump, to dump water into buckets or what not.
using rebar. and then finding a tool that can be ran with smallest generator possible and tossing generator it on a hand cart. or into back of a golf cart / utv / atv.
you might find a 12v to 110v converter will work, and if it does, good chance you may need to REV up engine just to keep battery alive. and/or go through 1 to 3 deep cycle batteries possibly.
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with rebar and larger signs. i ended up having to make more of a "tripod" for like a camera. and pounding in 3 to 4 rebar into ground. at different angles to form a triangle at the ground. and then using some fence wire / electrical fence wire to snug all the rebar together at the top. if not the rebar in higher winds was causing the rebar to physically bend. due to the signs were pulling so hard. (were larger / (longer) plastic banner signs)
a T post less likely to bend vs rebar, but you need to get them deeper into the ground.
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if you can drive an ATV or UTV onto the grass. check out some of the DIY post hammer builds here on TBN.
google "post driver site:tractorbynet.com" then click up on images
google "post hammer site:tractorbynet.com" then click up on images
a couple of the builds use a large weight (think sledge hammer but a bit heavier), some track / guide rails of metal. and use the tractors hydraulics to raise the weight, then let it come slamming down. you might be able to mimic one of there builds into a mini trailer to pull around with a golf cart, atv, utv.
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if you had a mini ex (mini excavator). just weld a little pipe to back side of bucket so a T post or rebar can slide into. and just push the T-posts to rebar in, and then pull them right on out, with a chain, or more better a "grubber chain / choke collar chain"
there is a descent amount of 12v to hydraulic pumps out there. more geared for ATV / UTV units, and even for some trucks as well.
there are a variety of "cranes" that fit on to atv/utv. and into the rear hitch of a truck. or mounted onto a small trailer.
there are some generic DIY builds for like a backhoe out there.
figuring something out. to use weight of what ever unit, to push T posts in, and then pull them out.
not sure if 12v actuators would have enough force. (electrical versions of hydraulic cylinders)
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if you dealt with sand bags. + mini trailer + a crane that uses a hand jack. or a 12v to hydrualic pump to jack to lift/lower, or 12v winch to raise lower. to help deal with weight of sand bags.
pull it around with a riding lawn mower if you need to.
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if you got the metal and skills. build an A frame. were there is a hinge at the top. and then the brace in middle attaches some how easily. perhaps put a bottom rod across near the bottom. and toss a sand bag over the rod to keep it held in place.
perhaps add a 3rd leg to the A frame. to turn it more into a tall tripod. and weld on a little i don't know 12"x12" plate on bottom of legs, to toss a sand bag on.
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goto your local sport store / camping store. and look at various "tent stakes", some of them you can attach a drill to. and literally screw right down into the ground. then slip a pipe into the top and toss a pin in. then reverse to remove the stakes. should be some sort of "drill attachment" for the stakes.
some of the stakes offer a ring on top of the stakes. to more easily attach a rope / chain to. so you can pull a post over to tighten things up.
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to state it. do NOT try a chisel hammer. for like busting up concrete / making a hole in concrete. not enough momentum / weight. you will just end up wasting time and destroying T posts and/or rebar and/or the bit in the chisel hammer.
