Nice score, they have now increased to $31.99+shipping.
As for fuel filter placement, idk if there really is a best way but this is how I have mine, mounted with some highly engineered race-ties. :cool:
Some run it in front of the tower, typically the shorter the line the better, but over all...
That is the upside to the big bores, they also have dual rate springs and the shafts are less likely to bend.
The oil shipped in the kits or pre-filled shocks is equivalent to 30wt per HPI's manual. Many use 35-40wt.
Depends on what you do with your truck. I'm currently doing the same thing on the same truck, I settled on the factory plastic big bores for bashing. There is a seller on that one auction site that is selling un-assembled new kits for $10.50+$5 shipping. Just ordered a set myself. Includes...