If you have a car getting over to Pascuales won't be a big deal. If you have to bus it, I expect you'll hop a school bus or similar in Cuyutlan, take that to Armeria, take a bus to Tecoman, then take the bus out to Pascuales. Some taxis around but that round trip could be $10-15 one way.
If you are busing/taxiing it, I'd bring a towel and dry clothes, and plan on eating at one of the restaurants fronting Pascuales post-surf and ask them to hold onto your sh!t while you surf. The first hotel where the road meets the beach, Real Pascuales (Edgar's) has a restaurant adjoining and a shower so you can wash off.