Thanks, all. I’m going to see if I can borrow an antenna analyzer from someone local (any Tucson hams reading this – want to lend me one?) and wait until I have that in hand to do any more adjustments. Now I’m wishing I’d asked on here before I started! I may end up having to solder new wire back on at the end, which would be a drag.
I do have 20’ telescoping pole, and I’ll make sure to get the feed end up in a tree or something next time I use it. Will post updates once the thing’s working!