Thanks guys, I put in a pretty big order for supplies and added in a set of large ND gels that I will use.
I modified my glasses carrier to keep negs flatter and did a session last night and it worked great, so I will figure out the glass one as needed.

And where can one find a full frame 6 x 6 carrier for the 45 series? I know SK Grimes can mill out a second carrier for me so that might be the ticket for now....

Thanks again!