I agree with Paula.
Laminates are not so expensive that they'd be cost-prohibitive, and I've seen your work so I know you could easily handle the task.
One other thing to consider, and I'm not certain about this product you linked which is specifically called a "countertop paint" but in general, there is no paint that is considered safe for areas that will be used for food prep. But, it could be that this paint is specifically formulated to be safe in that environment. It's something to check into though.
Good luck with whatever you decide to do!