Jeremiah - you just hit the nail on the head with me. Every tractor I restored I could just never get myself to actually use it - so I had to sell it off and start with another one, use it a little as a worker to get a feel for it (assuming it ran or I got it to run) and then when the season changed I began a restoration process, that generally took me 6 months.
My 169 was my last restoration because I knew I was moving out here to the left coast - and I barely got it done before hand. Still haven't done the snow blade or mowing deck, and the wheel weights are in primer - mostly because I wouldn't use them anyway, and it's hard to drag them to a show but not attach them to the tractor (so I don't chip any paint).
Maybe it's partly because it took me 6 months to do a restoration. It's not that I'm slow, but I had to be happy with every part I was gonna use, from cleaning and reusing the wiring or finding another harness, to re-fibering the dash, to finding a decent hood with no dents which was nearly impossible, to making sure I had all the correct IH stamped bolts if it was a narrow frame, or WP stamped with the wide frames. It all takes alot of time. I couldn't afford to run out and get new if I didn't like stuff, so I had to come up with used parts decent enough for a restoration - and all this was before the internet, so it becomes more apparent why I had half a dozen tractors hidden under my back deck. I gotta say by the time I was done with a restoration I was quite proud of what I did.
I remember a 107 that turned out just really sweet. My paint job even fooled one of the greatest CC restorers and CC Police out there - he just couldn't believe it was a rattle can paint job. With the right preparation and right finish conditions you can learn and really make a rattle can job look completely professional. (And I'll add I did alot of it outside, and we all know the weather conditions can change quickly some times - and as a result sometimes I had to re-do the job 3 or even 4 times. But I didn't have a choice, I didn't have a compressor or a paint booth area, just a garage and a basement (with some heat lights for winter time use), and the great outdoors in the summer.
So - this is why I could never bring myself to use one of my restorations, except after I sold it for some demonstration like how to mow with it, or running with a blade or snow thrower, etc.
By the way, I had a look over at Jim Harder's thread you mentioned, and that is a sweet looking machine. His still shots are great, and I noticed there are no attachments on the unit. I could never use his unit if I were him. To me it's like made for taking pictures. They ain't making any more of them so ya gotta keep the best ones as best you can. I have nothing against workers mind you. That's what they are for, and where it becomes a part of you over time. Hey, what's wrong with using it for 20 years, restoring it and retiring it just to keep, and then start the process again, use another one for 20 yeats, etc. In fact, do it again with the same model. It's nice to know you can make them just like new again if you want to.