Hi Adrian,
I do understand - believe me, I do. There is nothing more frustrating than getting everything to the point of completion and then being turned back by the board. I want to avoid that at all costs too, but the board does need to understand what you are proposing.
To that end: I think that if the committee has clarity on what they are going to propose, a plan that they know is executable, and a back-up plan for things that fail then the board would happily get behind that. Financially speaking if the committee plans on spending less than 80% of whatever the bid value is (I would probably aim at about £30,000 bid, plan to get the work done for less than £20,000, allowing that things do go over budget) then it should get the full support of the board.
Perhaps start with questions 4 and 6 from the Technical Submission (Methodology and Project Management and Delivery) as that covers the what and the plan that the board would like to see.
Don't worry about the rest for now as all the appendixes the Department provides templates for (so easy to deal with once you have the board's approval) and we can help you write the answers for Skills, expertise and capacity (Q3) as well as Understanding of the sector (Q5) and we can actually take those as read as we know, and trust the committee with regards to them. Questions 1 and 2 are straightforward too, you have answers for them already in your email to us.
Best regards,
Grant