Best amp choice

I'm looking to run a 10 IDQ sub and 4-100 rms speakers
looking at the mtx RFL805 amp but not seeing much for reviews
any suggestions?

 

i'd stay away from mtx. better off looking into something else. if you want an all in one solution the zed leviathan is worth looking at. http://www.zedaudiocorp.com/Products/leviathan.html

 

Budget? Space?, ie Dbl cab, xtra, etc?

Will you stop at 4 x 100 rms + 1 x sub?

Typical Tacoma situation is tight on space, so if I started over today in your situation, I'd go with a JL HD900/5. If you're constrained by budget, maybe an Alpine PDX5. If you have the space (half of a dbl cab back wall) and don't intend to expand down the line, then you have many great amp choices.

Starting over, I'd go JL HD900/5 (sub, rears, tweets in pillars) + JL HD600/4 (front midbass, midrange) All active setup. Today I run 3 amps to accomplish this.