3.1 V6 swap

I have a 79 Vette with a blown engine and it's been sitting in my shop for 2 years now untouched. I've been thinking now for a while on what would be a easyish swap with not too many modifications. I've seen people have put 2.8s in to chevettes with not too much difficulty. now from what I've heard the 3.1 is the same block as a 2.8 but around where I live there are allot more cars with the 3.1s in them in the auto wreckers but if I want to take a fuel injected fwd engine and put a different intake on it so that I can use a carb and make it work for rwd. I would want to put a t5 onto it. Also not sure how the motor mounts would work since it's out of a fwd car. Has anyone done this swap or heard of this being done?