Thanks for the advice, Matt. I suppose I overreacted a little when I saw the damage that had ensued. I don't know if you were following my first build, the Explorer, when I did the paintjob, but that was just walking on hot coals over and over again. I didn't want to repeat the process, which is basically why I've vowed off spray finishes.
I did use the steel wool between coats 2 and 3, but I never dipped it in naptha. What would the benefit be?
And I sanded with water only, seeing as I only had one can of oil, and I don't feel like buying any more cans. Would you definitely recommend sanding with oil lubricant? And is 400 too harsh? The body is sanded up to 320, I felt it only natural to start where I left off, when finishing. I have plenty of micromesh that I never used from the first build. I'll dip into that in later stages.
Once again, you calmed me down a lot, thanks.