After cross-check RSR934 (49400) manual and TA05 manual. I think I'm safe to say, the Alum bulkhead is 99% match to TA05. I guess we will see TA05R in very very short time.
RSR934 manual:
http://www.tamiyausa.com/pdf/manuals/49400ml.pdf
Beware the bulkhead screew hole on chassis. Also, check the parts number of other parts, same parts number with TA05.
I guess the only question left is: WHEN...