the guys obviously clueless about the hobby. no offense but it kinda sad people won't just come out and say. I don't know anything about models can I get the biggest baddest thing I can think of

the heli you want to build is gonna cost you about 5-6 grand
the twin bomb you want to build to lift the kind of weight you wanna lift is gonna cost at least 6 grand more like 10

either one you'd better learn how to fly first, the if that guy can do I can do it I can do it just doesn't work in this hobby. it is learned. get a trainer and join a club and go through the motions of learning to fly, after 3-4 years of flying and 4-5 single engine kits you might be able to think about taking a project like this on