Building a Sea Chest

[mbmcdermott18]

Gentlemen, new member here with a couple of questions. I am in the process of planning a sea chest. I am going to make a male mold to accomplish this. This will be my first major fiberglass project and I have a few questions.

I have read that once the mold has been waxed properly (I plan on using partall#2) the mold does not have enough surface tension to brush the gelcoat on. I am trying to determine if I need to spend the extra cash on the cup gun.

On the layup I was thinking starting and ending with a layer of 1.5oz mat with four layers of 1708 45/45 biax. How are these products to work with? Should they lay down decently once wet out? Any suggestions as to how I should cut the glass to conform correctly or how much overlap there should be?

Thanks in advance for any advice you can give. I am going to atach an image of the sea chest in case someone is unsure as to what I am talking about.