i fitted mine in the tiger ,i got the booster / tls / and blaster2, with high grade speaker, with postage came to about £165, from blitz, going to fit the same setup in my pershing, just emailed blitz and he wont be getting more hl/elmod boosters in untill nov/dec, so i might go for the all out prop version for the pershing, have you looked at his site ,www.rctankwars.com, it explains all what each unit does on there, also you can download the manuals for fitment instructions
regards cliff