I too, would suggest the Minimeg as the best available option. The trouble will definatly be from the LCD issue. One possible solution for the screen is this:
http://galaxy22.dyndns.org/shuttlecraft/psone_lcd/index.htmlThis is my website and I have played with the PS-One screen extensively on the Amiga. It isn't perfect because it is small. However, there may be larger LCDs that would work.
I can say one thing for sure.. a typical laptop screen WILL NOT WORK unless the minimig designers decide to incorporate the matrix drivers for that particular screen into the design. Otherwise, forget it..