TL unless youre on a budget then the AC is alright if its the sensor one not the stick. every now and then theres a TL in the classifieds here. check with local judges/shops too
for hours a day, or burps/bass race then uses a charger
i agree id do something like a kinetik first, then alternator. but i wouldnt run 3-4 bats for 2500rms
merc tracer probably has a really small stock alt.
try dominic irragis ebay store and see what he has. he might have like a 180-220 amp in your price range?