would this be enough?

Hey scott I am already going to the PI sale for a shifter, so thats why i was wondering about the taylor relocation stuff since its on sale as well i thought about picking it up...Mullinax, you raise some good points...i will try to explain myself (im not very good with understanding electrical and stereo systems)...My amp is 800W power handling, and i think my sub is 1000W max power handling, its 10 inch, and its got up to 4 ohms, so i dont know exactly how much wattage i'll be pushing through it...I already have my sub/amp wiring kit and it is the stinger 8 gauge professional kit (cant return it now either =( since i got a deal on it)...the amp will be in the trunk with the battery (only a couple feet away max i would say)...I will also be running a kill switch for the track- i dont think that would eat any power since its just a shutoff right? judging from what im telling you about my setup, what gauge would you recommend? do you think the wiring kit (8 gauge) that i got is enough? the guy at the store told me its the best they have...the alternator that i have now is a pretty new one that was on my slant 6 that i planned on reusing, but im not sure if its a hi output one...also, i think i would run the welders cable that moper mentioned since it seems just like a better option all around...from this info what do you think? i really appreciate the help here- like i said when it comes to electrical and audio im lost...i listen to the guys at bestbuy lol