Oh and its good to become friends with some one running a car with the same size rally tyres that has the budget to use fresh tyres all the time as their old ones are generally fine to buy if your starting out .
Saves you alot of coin .Buy yourself a tyre regroover just to go through the secondhand tyres you get to cut the rounded edges off the tread blocks . Sounds like a pain in the arse but you will save 70% on tyres compared to buying new, most front runners ditch theirs when the block edges show signs of rounding off .
The ones I used to get cost me 50 bucks each and had 80% tread left , I just sat down a saturday arvo with beer and cut the edges back square with the regroover.