I have a Dragon 32 going free (though any takers will have to collect or pay postage)
Details:
Home-made cartridge with RS232 port (5 pin plug like BBC Micro).
Parallel port (6532) with connection same as BBC Micro
Direct threaded version of FORTH in ROM.
My e-mail is jrheath@sky.com
And, for your Spanish or latinoamerican colleagues, hablo español.