dont mix....secondly, you say money is no object, but understand what your getting into....
3 13w7's.....1.5-3 grand (dependant on where you buy from)
3000 watts of rms power ......3 grand
most likely a new alternator, second battery, caps (probably something like a 15 farad one) ect...theres a lot of cost that i dont know if you have thought about yet....if you got the money go for it, 3 13 w7's is ****ing wicked...i wish i could afford more than my one 12w7! //content.invisioncic.com/y282845/emoticons/smile.gif.1ebc41e1811405b213edfc4622c41e27.gif There are new 8 w7's comeing out that will be badd ass, but dont combine them, you wont even hear it....you want mid bass drivers up front if anywhere. ps.....jl's project car only has 2 13 w7's.....it would probably be enough, but if you got the money and want that setup, i say go for it.