Is There A Flaw In My Plan

So my plan is to purchase a Chevy or GMC with with like 200K+ miles. Then locate a 6.0L and do some work on it such as cam swap, head swap, etc. Then swap the 6.0 into the truck. I have seen several of the high mileage trucks fairly cheap. I figure if I am going to swap the engine what does it really matter. I suppose with the high mileage you could have other problems like the tranny or whatever, but I guess i can worry about that when the time comes. I guess my real concern is when purchasing the truck is there certain years or models , or engines I should stay away from that may cause problems with the swap. Most trucks I have been looking at are around 99-2002. Any other thoughts that I should think about would be good also.

If i where to buy a truck to do any swaps. I would get an 2003 and up. The computer is easier to programming its a better platform and the interior is nicer. Also the parts had a longer run all the way to 2006or7 and the hard parts like the tranny are backwards compatible to 98. I even used a 1995 transfer case in my build.
Good luck with your project.

I prefer the trucks with a cable throttle body and a return fuel system. Not sure the exact years they went to this. I think 2003 was the first year for DBW, then 2004 they went returnless or something like that. Also, as the trucks got newer they also got heavier.

If it was me, I'd find a 2002 or something (has the same bad ass 411 pcm) and put a newer front end on it.

Just my .02..............coming from building a 2006 truck.

Thanks for the tips. With my luck I would by the truck and then find out that is the one model year that isn't compatible. I am sure once I get the project started I will have plenty more questions.