Stutter,
I got started on my 65 right away but I lost some steam at about 2 years. Then by the time 4 years came along, I didn't have any more patience. I rushed through some things so I could enjoy driving it a little.
Having gone through this the way I did, I'd do it differently next time. I'd first get the drive train and brakes working safely. If that means letting it sit for a while while I save up funds, then that's ok. Too many folks pull the truck all apart because it seems like they are getting stuff done. Bad idea if you don't have funds to keep the momentum going.
Doing the brakes and getting them working well can usually be done fairly cheaply. They need to be done anyway. Wait for a good deal on an engine if yours isn't gonna work as is.