Repair expectations for peeling tuflite board

So, long story short, I was at the beach the other day and rented a 9’ tuflite board that had big patches of the tuflite outer shell missing….like 1-2 open hand sized spots in two areas and a few more bits here and there. Was apparently watertight and still light, very light. I had a great surf with it and was thinking about buying off the guy and repairing it. Is this feasible is the question, feasible without adding too much weight and lasting long enough to make the effort worthwhile. Anything else to consider? Repair cost is cheap here so that’s not an issue; they probably would do it all for 40 USD or less. Thanks!