IMHO, build a 40x40 or 40x60 deep hangar (not wide). Insulate it, drop the ceiling to 15' and heat it with a large wood stove and a ceiling fan or two. If your wing span will allow, put in a 32' garage door (the largest garage door available). Much cheaper than any other door and you can move it manually. If you have to have wider, consider a movable center post for two garage doors - its not rocket science. Build a second 40x40 (or 60) right next to it that shares the long wall. Thats your un-heated and un-insulated place and put your movable and or completed projects in it, cars, trucks etc - "covered storage". Get a cat to police it.
After several projects over the past 40 yrs (some still in the works) I found despite the moaning, a tight work shop is a happier work shop cause you tend to be very efficient about how you use your space - shelving, rafter, electrical hooks, compressed air hooks, over head lights etc and dont have to walk all over the place to get tools, or have a complete second set of everything. Did I mention its also warmer, cozier, and you can actually hear the radio without it blaring?
Kinda like big houses, everyone aspires to them, but once youre in, theyre an echo chamber warehouse and it can have its pitfalls...rain leaks, drafts, snow loads, floor cracks, mice etc....
OR just have at it and build a monster 100'x100' and have all your friends come over to drool at it....while you try to figure out where that **** 1/4" socket rolled to this time.....
Just my .02 (BTW I have airpark property......)