Glad we could help. And yes, termination issues are notoriously complicated with the TT :-)
As for partitioning, TOS on the TT will accept 512 MB for whatever partition, even the boot one (I'd go for 511 to be sure, Hddriver on my Falcon considers 1024Mb to be *over* 1 Gb, apparently, but ICD may be different). However, you might not need that much space on a boot drive.
Have fun.