Evan, email Joel. He will send you pics of the table he built last
year: 5x10. We used 1" thick melamine faced particle board on 2x4's.
We also experimented with different wet out methods and to simply pour
the resin then spread with squeegees works best.
We also experimented with cheaper vacuum bagging materials with
success: duct tape and breather made from garden supply store canvas.
I assume you are going to vacuum bag?

Jacques from bateau.com