Beginner and my Tarpon 140

[Maddawg46]

I have a Wilderness Systems Tarpon 140. Just got it a week ago. I jumped right in on this Kayaking thing. My wife is in a Tarpon 120. I seem to ride a little lower than her in my 140. I weigh 280 lbs. Was this a good choice for me as a beginner? I sure am hooked on this. So far we have gone out the last three weekends. Lakes and 2 different rivers. I live in Central California. My wife intends on going all winter!! I was going to get some high neoprene boots and Gortex pants. Will that work for 40-50 degree weather?