heehee  I know how that goes!  Now, you've seen 
the OVA right?  Tapes or anything really of the 
OVA are extremely hard to find, and most of 
anything that you might be able to find are Raw 
Japanese w/ Chinese subs.  I couldn't even find 
tapes of the original Japanese video release in 
Mandarake Nagoya or other used shops like Book 
Off.  You might get lucky and fine the LDs or 
the more rare tapes of the OVA on YAJ, 
though...  =)

BTW, do you have any other cels from B't X?  I'd 
love to see them sometime!!  ^_~

Rekka