short answer: no, don't buy a snorkel set for scuba

get a mask that fits well with tempered glass, a tube or semi-dry snorkel, and a pair of paddle/blade fins.

the oceanic viper fins are probably the cheapest you are going to find and be adequate

http://www.amazon.com/Oceanic-Viper-Scuba-Diving-Fin/dp/B008A0QIVC/ref=sr_1_1?s=sporting-goods&ie=UTF8&qid=1444847492&sr=1-1&keywords=oceanic+viper