If you're wondering what a "fixed" N64 would look like, look at the dumpster fire that is the PS2 hardware for the answer. Sony's idea for fixing the "SGI workstation game system" concept was to glue a partial PS1 in for sound and controller ports, glue on vector units only to lose all IEEE compliance (hence why it's been historically so awful to emulate, can't just straight translate those vectors ez), throw RAM on everything down to the video encoder and then funnel ungodly amounts of money to the marketing department leading to absolute batshit people went along with like the supercomputer claims or those TV spots David Lynch directed. End result is millions of sales at the costs of lots of developers being so burnt out they didn't come back around on the PS3's own batshit quirks until three or four years in.