I would never in a million years drill into my Explorer dude. There's no need to hack it up or anything to install the Bigsby with a Vibramate. They are a metal plate that attaches to the screws on the stopbar. You just attach the Bigsby to that, so there's no need for drilling and removing it is fast and easy.
I think tuning will become too big of an issue though, so my interest has definitely gone down.
Btw, I actually like strange looking equipment. I have an Orange Tiny Terror and Orange PPC412 and coil cable (looks and sounds freakin sweet) so i've got the oddness started. I look forward to the future when I've gigged so much and so hard that my Explorer is relic'ed and beat like SRV's str*ts. When I play, I get into it and jump around and throw my hair and Explorer around. It's going to get beat up someday hahaha. It'll be like a timeline of shows and crazy events that caused each little memory, a bruise or scuff or even a chunk of finish missing. So having an odd looking vibrato arm would be fine for me.
I mean, afterall, I play stuff like experimental rock and mathrock. So an odd looking guitar wouldnt be too out of place, especially not if I'm going crazy with my hair while alternating between 11/8 and 7/8 time. hahaha