lol, 1500 frame. who wants to take bets that he'll drop cash on a yamaguchi, then swap all his ****ty khs components onto it. 'guchi rollin on fsa veros and formula hubs laced to alex rims.

buy frames by geometry. weight isn't much of an issue. you'll feel it most accelerating (and then frame weight is not as big of a deal as wheel weight) and climbing (and might as well go variable gear for that).

drop cash on parts with bearings. that's your bottom bracket, hubs, and headset. leave a benjamin for your saddle too. the one that works best for you may cost more than some serfas or velo. seatpost, stem, and cranks aren't very necessary huge purchases, if this is street ridden you won't care about at most a half of a pound. I also doubt you're putting out enough wattage to start flexing cranks or breaking stems or seatposts or whatever (scratch that, if you're tricking you'll want sturdy parts, but then you wouldn't be buying a njs frame or whatever). lace your hubs to open pros or aeroheads too, they're light and decently strong (aeroheads catch hate here, but i have mine laced with a stressfull twisted spoke lacing, and it's holding up fine to potholes and curbs)

or i could just do like you asked. i recommend the godzilla, milwaukee, vigorelli, etc.