There is a place called magnusmotorsports that are rebuilding td05's they are dsm's but they have made flow alot more and supposedly kept it from lagging alot more and call it the g-pumper. from what i have read it looks promising but I am waiting to hear more from them. You guys should check out their site and tell me what you think.
Also Z from Japan said he can get a used td05-18g.You might want to check with him.