Hi,Chris this is the info promised, I love your board this is the future

What are dimensions and volume?
For the mix of microbaloons /resin you can had some white pigment, sand thinly the surface to leave no mark get a smooth white surface and then laminate the board with resin mix with an other color of pigment.This process make look bright colored your glass .
So laminate your board with overlapping glasses as did in the 70's with pin lines. You can do two color as show on this picture, pin lines are made with polyester gel coat.
For the grip , buy a sheet or stripe in a roll of grip stuff like 3M does under different label or as John's did reckon before. Mine has been provide by GONG's Then use a template that you show upon the board to be sure of what you get after cutting and the most important thing is to cut the grip with a design paralell to the pinline or outline of the board.
Before applying and glue the grip , use symetric bitch mark ...to be sure the grip will be even to the board.
For the TAIL BLOCK I'm recycling a bodyboard made of PE by using the front part of it after shaping it and glue with neoprene glue .It 's stiking unless you stick the sanded side of the PE.
As a finishing, grind the rim of the grip edge in a bevel to make it nice and really hand made fashion
The shape of your board really worth a goodfinishing by fitting home shaped grip and block tail as Radman did customize pretty well his wide tail with the clarke blue foam or cheaper double tail block than Colas but functional did on his GONG board.
Tell us later, please