Nikon 3200 housing

I have a Sealife 2100 and was looking at a Sealife 300 or 310 (3.3) because I hace the sealife strobe. I was thinking of instead purchasing a housing for my Nikon 3200 such as the Fantasea and use the strobe I have. I will only use this on a annual vacation and since I have the 3200 and all the memory cards and batteries what are your thoughts. I am only an ocassional user and don't need to get overly involved if I can help it. Thanks