Would this skip be suitable for "No major skip" runs

Why not a Different endings Glitchless so "Afton Ending Glitchless" or "Fire Ending Glitchless"

I’ve just found this variant of speed running and I was wondering if there was a way to request Pokémon other than what’s already available: the starters, bidoof, gliscor etc? It’d just be really interesting to do a few speed runs using only one specific Pokemon. If anyone knows how I’d appreciate if you could let me know. Thanks