HELP; Building a kayak without a hatch and the deck is already installed. I made a mess crawling inside hull to instal a forward bulkhead. I got the 3M white 5200 adhesive/sealant in all the places except where it belongs and almost suffocated cause I got stuck in there. I managed to pull the bulkhead out and there remains a huge mess inside the forward part of the hull at station 5 to about 18" toward cockpit with the white gunk.. I cut another station 5 bulkhead - hot glued a handle to it so that I could reach in to try and hold it in place - I squeezed out the gunk along the front edge of the bulkhead and used a yard stick to shove the gunk along the outside edge to glue and seal her. I made more of a mess. Please offer me some suggestions on how to approach and instal a bulkhead. I also bought a large block of "closed cell " foam that could serve as an alternative for a bulkhead, but again HOW?.

I did not cut-out the hatch because of poor eyes and shaky hands (72 yrs old).
Any help would be appreciated. I would be willing to pay for someone experienced to come and help me finish this project. I live in San Jose, Calif.
Thank you