in post one you asked about upgrades, for club racing I think you will be fine with the car as kit apart from poss some blue front springs as some prefer them in mid set up...others don't. also if running mid some form of weight set from cream or TLR.
from there on it depends on your level of bling requirement
As for some of the above posts I did run a B4 from 2007 untill the release of the 22,my 22 was one of the 1st batch, I ran it for 12months but could never quite find the sweet spot for me so changed to an RB5 vega, but thats me some car's just don't work for some people. I will say this tho I think the 22 is better than the B4 for the following reasons, for the CLUB racer
A) It's a stronger car especially at the front end
B) The choice of rear or mid is all in the box, no after market convo needed
C) given that you have the above choice it a great price
Both my kids run 22's and they drive hard and fast ( and scarily well at times) and at the min I would have no intention of looking at them running any other car.
as for fitting electrics, like many modern cars at the min it can test your patience a bit,but you can get there in the end!
There are some very knowledgeable losi drivers on here to give good sound advice without looking down their nose at you or making themselves look better at your cost