Well, the weather is still not cooperating so I decided to go to the Japanese LHS and bought some more stuff for my ST RR. Kyosho parts is definitely cheaper here compared to Amain Hobbies.
Anyway, since I can't run the truggy, I decided to install the following hopups:
Top is Fioroni 7075T6 center diff mount and bottom is a pair of Fioroni 7075T6 .5 degree rear hub carriers:
Mounted on the truck:
Almost time to replace the CVD pin: