20 minutes, sounds about right for tack up of the titebond II, I just finished the horizontal stab, it's not tough, if you've scratch-built before, it should be a walk in the park. Just simple cut and fit of the sticks. If your looking for measurements, I'll include them, the center of the stab to the edge is 6 & 7/8", on either side, the angle to the rib edge is 5/8 back from the outter edge and the front down is 7/8" like the manual states. I think the toughest part is getting the two cuts on the diagonal braces correct and tight. With that said, 1 1/8 x 1/4 x 24" stick for the diagonal braces is not enough, you'll have to dip into another stick, but it's not a big deal, if I remember correctlly, there is plenty of wood in this kit to go around. I am taking pic's and saving them up for sub assemblies, I'll post them as I complete a section. No rush, it's your first kit build, just make sure every joint is nice and snug, use titebond II and all will be fine. I think sometime tomorrow I'll do a write-up on the steps, just aim for one structure a night and before you know it, you'll be covering it. Speaking of covering,....Plastic or fabric? I'm thinking koverall and dope for mine, but the last one I had was monocote and held up fine. As far as the building board, I go that route because it's cheap and it is stiff, a 2 x 4 ceiling tile and MDF board will run you about 12 bucks, it will not warp, especially in the west coast.