SS frame question

["supremeadmiralsenn" <StadnickAd@xxxx>]

Hello list! My friend and I were having a random crazy car 
discussion (the usual guy topics: how to make a car faster and 
cooler) and we brought up modifying a De Lorean (which I will have 
in less than 2 years) and he says he has access (bargain-priced 
access)to a VERY powerful engine the size of a small V6, potentially 
as poweful as 600hp! I said awesome, but what about torque issues? 
I've read some of the posts about this, and I've concluded that the 
stock frame just won't handle the stress of anywhere near that much 
power. So my question is, would a stainless frame hold up to this? 
Also, how much do they cost to make/have made? Thanks.