Thanks guys.. Ya, we'll try these tires out this weekend and see how they hold up.. 90% of the way to the water is all grass/dirt/gravel.. As for the axle, it's just a reinforced threaded rod with carriers throughout the PVC.. Not bad for $160 in material, no plans, and about 2 hrs labor. Anyone know where to get the balloon tires for a decent price (just in case)?
So how much $$$ did you end up spending to make the cart?