The front shocks are a little long to be honest but they'll be ok, and I've tweaked the suspension now (front: 30w, TLR LF silver spring & rear: 30w, TLR Pink spring) & it feels good, somewhere to start from anyway.
I decided on using just the one battery for the Revival so I have a 4500Mah 45c stick pack arriving hopefully Tuesday along with the low profile TLR wheel nuts which I need for the rear wheels & a 0.6 mod 23t RW pinion.
Today I've fitted a front top deck using a modified carbon top deck from my old Ansmann x4te. This has boosted my confidence somewhat as it's eliminated all of the flex which was worrying me, all that flexes now is the front shock tower !