looks ok glen,
maybe a bit overkill as the lcd and subtrims etc can be a bit more than required ,then overcomplicates things. especially setting up abs throttle atv etc .
if possible i would look for one of the cheaper futaba sets ( wheel or stick)
i know acoms stick sets are available for about £30 brand new on ebay.
you`ll probably find standard servos `satisfactory` for most use. but i would advise a hi-torque steering servo to allow more power for turning thise big wheels
one thing i would ask if you decide to go ahead make sure teh unit is on 40mhz, as it does not say in the advert. the item is coming from japan and could be oin 72mhz band, which strictly is not a band for rc models and hence illegal .