I found the hubs and rims on ebay and took them to a local bike shop to lace up. I am about 2 or 3 days away from a test ride on my warrior and here is what i learned and what i'll do different next time:
Go to walmart or target and buy 2 new bikes instead of using old ones. If you use old parts you'll get a new combination of old parts that may or may not match up and finding parts for old bikes is a pain. If you buy two bikes you can get them for about 100 each, you'll use a lot of parts off of both bikes, just the 3 chains needed are 20 bucks each, so you'll only buy one more, you'll have spare peddles, gears, grips, brake handles, etc. The head tubes, bearings etc. will all match and be new and easy to find replacements for.
Do not cut the seat back down tube at a 45 V like it says. The plans say cut it at a 45, then tilt it back at a 45, that will make your V cut, into a L, which is what is needed for other plans, but not the correct angle for the rear wheel support for the warrior.
The plans say make the front boom 11" from the ground. If you look at other warrior builds on here, you'll see that isn't high enough. The control arms that extend back, won't be low enough and the steering bar that connects the two wheels will hit the frame. I had to move mine up to like 12.5" instead of 11" (my theory is the bucket in the pic is 11" and then has an 1.5" piece of pipe on top of it). If you can't use a pipe as a makeshift axle between the center of the hubs for the two front wheels, then your frame is to low and it will be an issue.
Add extra bracing on the rear wheel support and the front wheel supports. Making it stronger won't hurt, but I found a lot of old posts of people saying that the one weld location is weak and it or the metal around it breaks. Most bikes have the rear wheel with triangular support.
Look at Jon's build on here and steal his idea for the frame for 2x4's, it makes it so much easier. Also go to the way back time machine (internet archive) I put a link in Jon's thread to some old posts on the old forum and a guy named spinner posted pictures of his build. He made jigs for making the front wheel cuts easier, the angles on tthe head tubes steering booms, etc and had a ton of useful information in there that took the guesswork out and makes it so you don't have to hold 8 different moving parts and get them aligned and welded.
I cut as many pieces and parts before i started welding as I could, it was a huge help to have all the tabs and stuff done and ready to go, so I wasn't trying to build and make it all at the time time. Some you can't do ahead of time just because you have to measure when it's built to that part, but there is a good amount you can do ahead of time like the end caps for the tubs the parts for the peddles, the steering tabs. I spent a good week prepping as much ahead of time as I could, then I tack welded everywhere i could and kept building, I didn't make final, solid welds until I had to, that way it was easy to make changes or corrections.
Buy several of his plans, he does things differently on other bikes that still work on the warrior, like the plans for the warrior don't really mention cutting down the seat tube, it just is says lave 12" and mentioned at one part about adjust it later, but the plans for another bike say how to size, show pictures, and have information. When I looked at my build i wondered why the tube stuck up so far, but the pictures shows his was just about the same height of the arms on the peddles.
anyway that's all i've got so far, i'm sure i'll think of more stuff soon enough.