Ditto on the suggestions above. You might find my thread on restoring a Philco radio cabinet helpful:
http://www.videokarma.org/showthread.php?t=247120
They do recommend you stain before the filler. Keep in mind that stain penetrates veneer much more than hard wood trim. That will leave the trim lighter and possibly splotchy. That's a big advantage of toner - it gives you a consistent color over different woods.
The only grits I use on wood are 220 and 400. 80 is too coarse for thin veneer. After stripping, I use stripper wash and steel wool. That generally removes all the stripper residue so there's not much sanding required.
Good luck.