Looks like a good starting point.
Johnny has that Exceed system and it seems to be excellent value for money (plus hasn't exploded like a Losi system yet).
The B44 is a very popular chassis (though curiously only Rob uses one at Bury, loads at Southport).
I'm not a fan of Bluebird servos myself (the only one I've had the case cracked) but others use them without problems. Personally I'd get a Savox.
For Lipos Rob and I both use
these monster sized saddle lipos. At 6000mAh they will do you a whole days racing with some topping up.