The extra rail mount could mean the kit was originally a lefty.As far as restoration...well what you have there is and will remain a players kit.Once ANY modifications are made ,altering that kit other than the way it came from the factory...it is no longer nor will it ever be in collector grade.There is extra hardware installed ,which means extra holes.You can restore these drums to NEAR original,but you will always have those holes ,even if you repair them,and rewrap (which would be a huge mistake).Lots of people think filling holes and rewrapping will make the kit original,and collectable again....but that is not the case.The mods made to the kit may seem minor to you...but to a collector who will pay top dollar,they are a major point ,making those drums worth about half of their collectable value.

Steve B