Yes I raised up the inner ball stud to chill the steering a bit, I found it made it more consistent in the turn, I'm no pro btw!
24/78 sounds perfect on the gearing
Yes a low profile servo is handy when using a big speedo, check out my car in the show me your vega thread as I use a gt2 speedo and savox servo
Link:
http://www.oople.com/forums/showthre...=66391&page=15
As for option parts, most of use use the avid or j concepts alloy steering rack and me and Lewis run a brass bulkhead but up to you on this
I'm sure you'll love the car