Sigh. The bigsby will require a few screws. I personally wouldnt retrofit one onto a jackson rhoads v. I cant see why anyone would want a bigsby on that particular guitar. The tuning stability isnt much honestly not as good as a vintage style strat tremolo in my opinion. You cant really use the bigsby for
pitch shifting either, its only good for really weak vibrato. I would be willing to bet you would have pretty big tuning stability problems due to the jackson
headstock shape (since you have a bigsby you wont have locking tuners installed and the angled of hte headstock is a little uneven, but functions with a standard bridge or locking nut). Id still be curious to see what this type of guitar would look like