Yeah, I know what you mean. Most Lanzar is absolute junk... no doubt. However, the optidrive line is known for doing rated power. There are plenty of options in your price range. I don't know that anything will do 100x4, but there's no need to go right up to the rms of your components. Let me do some searching and see if I can find something that may suit you...
Also, for wiring, I'd highly recommend www.knukonceptz.com . A nice 4 gauge kit will be more than enough for you, and will keep you from having to upgrade in the future if you decide to run a small mono amp to power something small in the hatch... perhaps a single 10" or 8".
With a quick search, I came up with this: http://www.sonicelectronix.com/item_...t-ONX4.80.html
It's definitely a budget amp, but it's not crap. It has a suitable crossover network to suit your needs. The Onyx series isn't as "beefy" as the Discus series before it, but it's still a solid performer, and should be more than capable of suiting your needs. If not, there are other amplifiers on the site in your price range. I'm sure some other members will be able to offer more assistance. Good luck.
