kamelito I see this Amiga reloaded as a first step. He's got the chips and .... what's he gonna do with them? To sell them here.
Yep, he will read this thread and others and he will take his own decision, based on:
What he has to change (time/cost) but also available software (blit).
How much it changes the original Amiga design.
If it can fit in an A600.
If he can sell later more things it will need.
If he can use better and/but cheap things (memory/internet/graphics/sound/speed).
If he can add more expensive things in the future.
Total cost under two hundred.
Two years later when he sells the last one he will make a FPGA amiga if people haven't already made it.
Just my thought.