Okay, I cheat. I back my tractor up to my fork lift with a pallet on the forks and sit the implement onto the pallet on the forks. I then drive away with the tractor when the implement is off and use the fork lift to put the implement up on pallet shelves. It's really quite easy. My box scraper is great to use and it weighs over 1000 pounds. It's a breeze to put up and take down off the shelves. Also, when attaching it to the tractor, it's actually easy to scoot it a bit to get the pins in. I don't even use the telescoping links often on my tractor.
All right, now that I've been a smart a$$, I did also cheat before I had a fork lift in my barn. Bob better sit down before he reads further though; I went to Harbor Fright and bought those $15 furniture movers to use. You know, those little wooden rectangle things with caster wheels on the bottom and some carpeting on the wood. I could put a couple of 2X4's on those to make my implement fit on them and then I could easily roll the implement around with ease. I was no longer stuck with leaving that 1000 pound box blade where I took it off. My plow, rear blades, tiller etc. all rolled around.
I don't know what to suggest with a backhoe attachment though. My backhoe was a Case 580 E and I sold it to my neighbor. He still doesn't know how to use it well, so the trade off now is that I'll go operate the backhoe for him when needed and, in turn, I get use of it when needed. I just drive it back to my neighbor's house for storage.