Need help with OS/8 + TC08

Hi, I've finally got my TC08/TU56 passing the maindec diags now. I've also tried to copy some TC08 bootable tape images to my drives. I can write them, read them back and do a diff with no errors using resttc08/dumptc08. However when I try to boot using one of these tapes several blocks are read in and then the system crashes and burns with no console output. As an experiment I'd like to see if I could format/read/write files from OS/8 running on my RK05 but it seems like all the images I've looked at are configured for a TD8E and don't have the TC08 driver on disk. I'm not an OS/8 expert but I tried a build and when I typed (I'm going from memory here): IN TC08,DTA0 ...I got a message like "HANDLER NOT FOUND" (or something to that effect). Looking at the disk didn't reveal any TC08 drivers. The PRINT command did show that it had been configured previously for TD8E support. So how can I get the TC08 handler onto my RK05? Could I PIP this from the serial connection somehow? Also, what is the correct way to do a build with TC08 support? Any thoughts/insight appreciated. Thanks, Marc