One of the Ex-Tek's, Micheal Cranford has designed a modern FLASH based RAMPACK for the tape drive, and filled it with most of the known BASIC games.
More significant, Micheal has written FASTGRAPHICS, a replacement for the BASIC vector draw functions; 100x increase in performance, in addition to the ability to draw non-store vectors. I think he has a few of these left. The big problem is the RAMPACK plastic cases are recycled from old ROMPACKs and these are in short supply. He is looking for a 'Toaster' too. Can we get a count of active 405x users out there, and start a group effort to build, swap, restore 405x hardware? (I got an original Kraft joystick, and starting that project from the schematics on bitsavers.) Randy