[beak81champ]

Sounds to me like you have a good start, with the amp and sub you have. I would ask either of those shops what they would charge for a simple installation fee, if you bring the equipment. Amps and speakers are super easy to find for great prices. I know you wont have a warranty on the equipment itself, but they should at least warranty their work, in case something goes wrong. You could simply find a 4-channel amp, some 6.5's, a pair of tweeters, and a miniDSP for probably around $500-600 total, and have it all installed. There are a bunch of youtube videos that would also help you do a lot of install stuff on your own, saving you a bunch. For example, you could, and should sound deaden at least your doors before you do anything else. There are videos of pulling the doors speakers, cutting out the junk OEM and using the mounting ring for aftermarket 6.5's. The tweeter install is about as easy as it gets, since it sits on top of the door card. Mainly, the install stuff you might want to leave to the pros is fusing, power wire, grounds, etc. since they could do the troubleshooting if need be. I have a bunch of equipment, if you decide to go the DIY route.

Just my .02