I'm in the process of shaping my first foam board, from a large chunk of EPS foam I found in the garbage. Board is gonna be a small fatty, aiming for something like 5'2 x 20 1/4'' x 2 1/2''. Its for small mushy surf, often short period. I have limited experience coming from ding repairs, replacing fin boxes, putting together snapped boards and building a hollow wooden surfboard.
I have been looking into different grovellers and fish shapes for inspiration. Especially boards by Dan Mann (baked potato etc) and the new line by Rob Machado (Gofish, Midas, Moonbeam).
I'm looking to add a channel similar to the Machado boards, small wings to keep a straight railline but reduce tail width. Maybe try to get a bit of V in the last part after the wings and a thinned out tail.
With the fins Im not really sure what to do. My Initial thought was to add 3 fin boxes for thruster and 2+1 setups. But looking for reference I found other options in quads, twins and singles. What is your general thoughts of a fin setup that could match this board? Thanks.
I have added photos of references, my plans and the board so far.