I own a 45 and have bought QA equipment for it. The kioti hook up and the skid steer hookup are not identical, but are compatible. You may experience a little bit of slop on pallet forks when hooked up. It isn't much, but you need to be aware of it.
Good luck. BTW I have really used my 45 so far and it has handled everything except for one old maple tree, one stump, and one concrete slab. I am not attempting to brag or act like I am a super tractor owner, but I have moved at least 120 tons of gravel, probably close to the same amount of tonnage in shale and clay, and at least 40 ton of topsoil. The skid steer is faster at the tasks I have done than my Kioti is. I dug out my foundation, had my house moved, filled in the old foundation hole, and since the new house stuck up out of the ground I had to backfill all around it.
I have also been moving alot of decent sized rocks around the yard for retaining walls.
I think you will be pleased with the 45 unless you have soft ground, then the tractor will sink on your property because it is very heavy.