"overmodified"........truth there. In my opinion and experience with lightweight chassis like these, once you do over 500rwhp it's just bragging rights unless you are running drag setup (but then you lose streetability and any cornering ability). 450rwhp is PLENTY for these cars at their weight level, chassis rigidity, and rear end swap capabilities.
So, did the money get sent or what? We all are happy for you if it is a cleared funds deal, as all our FD's are now verifiably appreciating.