ive had a look at the lrp blast as im planning on getting 1 they look pretty strong heres 1 on ebay with an extra battery too
http://cgi.ebay.co.uk/LRP-S10-Blast-...0#ht_500wt_949
cant go wrong for that price also modelsport stock some spares for it check with your local shop and see if they do spares if so then worth a look