Well, did a little more testing this afternoon. Screws it is. I may tack around the edges w/ the staples, where the skins are under the cap strips anyway.
Jim-Linda, Tango I'm a big fan of McMaster, but this is the rare case where they don't have what I am after. Their medium crown stapler apparently uses a T50. Too bad I can't use a crimping type stapler, LOL.
jjrbus, yeah, HF's medium crown also uses the T50. I just bought one of their narrow crown combo units (~ $23) which I used when splicing in the new wood. Worked great instead of clamps, screws, nails, etc while the epoxy cured. Just didn't work so well for the skins. No big loss :)
Thanks to all for the help, I've apparently got a direction now :)