I have 2 2x8 platforms and 4 4x8 platforms built from 3/4" ply and framed with 1x6. I plan on legging these all together to form the pit platform . it has to hold the weight of 2 guitar players, 1 bass player, 1 keyboard, 1 drumset, 1 sax, 2 clarinets, 2 violinist's, and 1 trumpet. I didn't...