The truck I'm building ('93 Grumman) has very similar dimensions to what you have but maybe 14' long. I am actually in the process of building my hood vent system and I think it should work pretty good. I showed the plans to my health inspector and he seemed to think that it would do the job of evacuating any steam and smoke pretty quickly. I bought a used commercial vent and I'm sectioning it down to fit my space. If you don't have the fabrication skills for this then you will obviously have to buy a new unit to fit your needs.
Here's where I am at today. Hopefully have it ready for install this week, once all of my wall cladding is up.
post edited by Polara Pat - 2015/01/30 12:27:13