Keep your eye out for an A1200 with 3.1 roms and OS 3.9. You might just find one for that.
AmigaKit has PAL refurbished ones left for $146USD - add some for OS, mouse, etc. and you'd need a US power Supply or build one from an ATX power supply like I did. (That's an easy solder job.)
It's PAL unless you want to do some hardware hacking and ground one of the pins on the Alice chip to make it default to NTSC on boot.
Watch around, you might just find one.
-Nyle
