I for one would never be embarrassed to put RIMS hardware on vintage mounted toms for several reasons
1.) I think the drums sound better (including the kick)
2.) It allows me to utilize one type of hardware for any kit which is a HUGE plus. Reason enough if you ask me!
3.) It allows for a wider range of placement.
4.) It does not hurt the "vintage-ness" of the drum. Take them off for photos or for selling if you prefer.
5.) Modern hardware is generally far superior to vintage hardware anyway. (my apologies to the purists, but you would be hard pressed to argue that)
When re-wrapping a tom, I generally leave the holes for the tom mount in the shell but I do not drill the wrap. That way if I want to sell it, I just drill the wrap and install the hardware, but otherwise it appears virgin from the outside. No harm done to the drum.