I like wrap better than stain because it is more durable when moving the drums around. In terms of the heads fitting. Get samples of what you have in mind, put a head on a table or the floor, put the shell on the head and see if you can fit two wrap swatches between the head and the shell. I'm told Rogers shells are slightly narrower in surface to surface circumference/diameter and that heads fit well on them. Glass wraps are thicker than sparkle wraps so test with what you believe you will use. Aquarian American Vintage heads will give you a little extra room and work for my glass wrapped Gretsch drums, which I'm told have the tightest head fit in the drumming world.
All craftsmen I have dealt with use contact cement and scoff at tape. I guess if you have some doubt in your skill set, tape will give you more than one shot at getting it right. Acoustic thinkers will probably argue that a glued wrap will be more resonant because the sound transfer will be direct rather than through the air between the shell and the wrap when you use tape.
Regarding your messed up 8". I wanted an 8" to go as an add on to a vintage kit. I had it made out of a Keller shell and with the edges cut to match the rest of the kit, it definitely has matched timbre. A 6x8 or 8x8 shell can't be that much money. I did my 6x8 5x5 offset on lugs because I thought it matched the Gretsch format of 5x5 offset lugs on my 6x10 tom. I must admit, I didn't check what was standard production for Gretsch 8" toms, but I also knew it was a fabricated add-on and didn't really care.
Hope that helps.
Regards,
Gary
Dix Hills, NY