It's a costly exercise, but possible!
You could get yourself a Catweasel PCI card, which though primarily geared towards floppy disk operations, provides Amiga-style keyboard and joystick ports.
Then you'd need to re-wire the A1000's keyboard plug to match the A4000-style mini-DIN provided by the Catweasel.
Not exactly worth the cost and hassle though!
- Ali
