Hey Craig,
Good luck on the 3d prints, I just recently picked up a Photon as well, and have been getting good results with my prints (1/24 scale truck wheels). If you were unaware, there is a very active, and knowledgable facebook group for the Photon printer, with lots of info for different types of resin.
https://www.facebook.com/groups/AnycubicPhoton/
I look forward to your prints and the rest of your build.
-kev