If 1000 hp was in your plans then a TRX would have probably made more sense from the get go. I've never chased hp #'s, more so times to judge results, sometimes whp doesn't translate to "beating" something theres alot more to it like weight, powerband, etc...But dont get me wrong I think it would be amazing to see you get to 1000hp.
Personally I think something around 700hp would be the sweet spot for the RHO, trans should be safe, it seems all we really need is a true tune, maybe a few bolt ons's / downpipes to get there. Doubt we need new turbos. A true tune could really take advantage of something like the new Mishimoto Aux intercooler too, if IAT's are down theres more room for timing. Might have to run colder plugs or something as well. Trans tuning would help us out a ton. It would also be nice to see something be able to bump up brake line pressure as it sounds thats all they did on the 27 TRX.
Should we start a list of people who would buy a full tune? Would that help get someone in the aftermarket moving on it a little quicker?