Hi jimmy,
what you need to do is come along to a club meeting at falkirk running up to xmas, you will learn lots just in the one visit.loads of great guys to tell you everything you need to know.
i myself started off road last year for a couple of meetings then gave up again. this year i stuck at it, but i didnt shell out for new stuff on both occasions.
most if not all of my stuff is second hand, It has changed from back in the 80,s 90,s with equipment that was used back then almost no good to sell as it probably was almost done or ready for the bin .ie cells, motors etc.
as for the lipos, you would not notice any difference at all in performance with makes etc. it all goes with the "C" rating, even lipos between 35c and 50c and can hardly tell a difference in a cars performance. you dont need these super matched sce,s of today,
same for the chargers, as long is it charges lipo and has a built in balancer or an external one it will charge just the same.
i myself bought a 2nd hand LRP TOUCH at 100. a new one is 200. i bought it because i liked the look of it and i never had the chance of decent stuff when i last raced so i treated myself.
it has a few good options on it but in the end itl do the same job as a 35 quid charger for charging lipos for example.
you will love it, trust me.