Transom fishbox help

[BenFishin]

I am putting a fish box in the transom of my V20 (enclosed Transom w/ bracket) And i am lookin for the best way to go about the box. I have been trying to find fiberglass liners online that i can insulate with foam but i am not having any luck. I plan on having a drop in liner/fixed apprx 50-60"x15-18"wide x 15-18" deep. Based on the size of the liner made/acquired i will make an enclosure around it to place/pour insulating foam app 1-2" thick. I would rather try to avoid making the entire box as i have already used a ton of West System. Any ideas?

[Blue_Runner]

Sounds like a great idea. This place www.fpmarine.com
might have something if you haven't looked there yet. I looked and they do not show one of that size on the site but it says "many more available" so I would just call and tell them what you are looking for. If they don't have it ask them who might.

Good luck and keep us posted. I'd like to see it.