I will try to answer it myself then.
Just ordered a Durga from RC champ. At the current exchange rates, a durga kit is a bargain since I can use the belts and pulleys as spares for my TRF501X. And I also wanted to try the plastic DB01 arms on the TRF501X anyway for use in low grip situations (kinda like the plastic parts being put on a B4 factory).
You can loose the bargain part since I also ordere a load of hopups. I am weak.
