Yes just meant the top half of the body is maple on the RR models but usually mahogany on the RLC blacks and white models. The RR model I had was also more of a yellowed colour than the artic white of the RLC models too, I preffered the RLC as they aged much more realistically to nitro in my opinion, the RR was alost bananna yellow. I've replaced both the tailpiece (string stopper) and the bridge on my burny's before with Gotoh metric parts before , they're decent quality parts. The Gibson parts are imperial sizes so won't fit properly, the Gotoh bridge and tailpiece should slot onto the existing bridge posts and tailpice fixings. I've had to replace a few of the bridges as they seem to collapse over time and the gotoh ones a relatively cheap and good replacement. The bore diameter on those schaller is 9.8mm so not sure if they'll just slot in , you may need to ream the holes to widen them slightly, plus the screw hole is in a different place to the gotoh's but it's an easy job. I just measured a spare Gotoh tulip tuner I have and the bore diameter is 9.3mm, not sure if it's off a Burny though and they're not usually a tight fit so you may be able to slot them in.