New beach craft in progress, need to make wider front fork, will post more when done.
Can I suggest that you change the tyres - it will make a world of difference to have a rounded point of contact with the beach.
We are going to try these tires for beach use as the kite buggy guys use them a lot. We do have a set of round tires that we use but they seem to settle in the sand more and don't ride on the top well. Just trying new things for the beach.