BGC OVA cels are getting harder to find, 
especially of the girls out of the hardsuits. 
Syvlie is very popular amongst certain collectors 
so be prepared to shell out much bucks. Anri not 
as popular but there is only two OVAs which she 
appears in. Lastly Lisa is probably the one you 
will have the best chance of finding anything on. 
SWars cels are practically nonexistant. Nichibei 
had one of Nene awhile ago, but it sold quickly. 
Just be forewarned for BGC OVA cels, be prepared 
to shell out $200 - $500., especially for popular 
characters and unfortunately many of the girls 
are such. Good hunting.