I picked up a L shaped 50 gallon auxiliary fuel tanks for a pickup at a garage sale for $50.00 and a HF circular hand pump and put it on pickup box trailer that I can run down and fill with fuel then I can either pull it into the field or pull up to the trailer to fill the tractor.
This works like a semi-trucker hauling doubles, you now have two pivot points. Normally with a trailer the pivot point is where the trailer is attached to the hitch and when you back up you turn the steering wheel in the opposite direction of where you want to turn, in this case you will want to...
Anymore I just purchase the best tractor for my needs and within my budget and have given up on getting same day parts and service and I try to keep extra parts on hand. I constantly have to go to multiple dealers/part stores or on-line to get parts even the local dealership tells me to order...