[Rimrock]

Can recommend S22, or E22, (+ML4 if want to control all lights) and SM3 sound modul, 8 ohm speaker LAUT85 & LAUTbox85 (for 7.2v. need 16 ohm for 12v). Use same lights as supplied with MFC.
There is LiPo cutoff in the ESC's, but I don't know at what voltage it is set. Generally I feel the suppliers of ESC's with LiPo cut-off set the voltage too low. I recommend using a seperate lipo alarm anyway, set at 3.6-3.7v. Then the batteri is at 10-20% capasity. If pushing the batteries downwards to 3.5-3v can hurt one or several cells to a degreee that one never get the same 'jucie' out of the battery. In my experience I just recharge the lipos at about 3.7v, feel no need to push them more.