OK, I was able to replace old my bike seat (lower one, below, with the stuffing coming out) with the new one in an identical model (top one), both Forté Contour Women's Saddles. This involved transferring the water bottle holder to the new one, and getting it aligned just right on the bike, which means endless playing around with threads and fittings. I think I have it all squared away now, FINALLY, though.
But replacing the sliced-up handlebar tape didn't go nearly as well. It took me a couple of tries to wrap it correctly with the "Felt" logo on the outside. Then getting the brake handle loose involves two Allen-wrench settings linked to some kind of obscure internal fitting. Now the brake lever is loose and I can't seem to tighten it without disassembling the whole thing again. Grrr!
Maybe I should just toss out the whole works and replace it with a fancy new $600 carbon aerobar set, eh? Nah, not this year.