Will this run on my 83 plus not silver?

I highly doubt it will. I have given consideration to a more 83+BE friendly version (no greyscale, simpler + smaller sprites in general) to be made alongside it, which would be compatible with the regular version. Making an 83+BE friendly version is not a huge priority for me right now though, as my main priority for this project would be to get the regular one up and running again.

And suggestion: for filesize and play quality, make it really short, but extremely replayable. Either that or make it have a shallow story with endless arcade style gameplay. Examples:
Pokemon, beat it in five minutes but played for the high score
Pokemon that never ends

This is going to be as close as a direct port of the original Pokemon Red and Blue as possible. That's always been the goal, and will remain the goal. Also, I'm not sure how well Pokemon would translate to an arcade game. Pokemon Stadium is kinda fun, but it really isn't the same. To me, Pokemon works best as an RPG, and I want to remain faithful to that.