FYI a guy called Nicolas Welte makes (made?) a 2Mbyte RAM card for the A570.
http://vic-20.de/x1541/hardware/a570ram.html
And just recently someone re-made the CDTV SCSI card (which also fits an A570).
http://www.amibay.com/showthread.php...l=1#post667484
Both upgrades were about £50 total. So you could keep it and upgrade?