I am sure if Tony post some original mockup of his idea and this is nice he would get some coder to help him. Most of these wannabe ports of arcades to Amiga will lose interest eventually and quit the project as many times has happened in the past. In the end why do it if you already have it on MAME with better quality?
If the game is original, Amiga only and very good quality they could ask some money for it. I would pay for it. Some games genres missing from Amiga are Metroidvania (mostly), horizontal shooters, vertical shooters, beat em ups in the style of Streets of rage.
Games to look after are Shatterhand - Metroid Fusion - Shovel Knight - Cave Story - Shantae Risky's revenge or shooters like SNES Raiden - MD Thunder force.