Fix the turbo and have it programmed, that will disable the IVAs and then you can remove the precooler and help water temp. You will have more wrapped up in converting then what it would cost to replace both turbos and have it flashed.
I'm sure that isn't what you wanted to hear, but I don't propose anyone remove the turbos, you won't find anything else that gives you as broad of power range all while being able to support 800hp.