Trial fit of all bulkheads to sides. Marked positions and drilled locating holes. Used pop rivets (mandrel end) to pin them together, (as per Rutan video, if not the plans).
Seatback is mounted 1" rearward to help c of g with lardy pilot. (Nat approved).
F28 is a worry. Made it 1/2" longer than plans as per FAQ due being mounted aft to plans. Is 1/2" too wide. FAQ has failed. Will continue. If it doesn't look good I'll scrap it and make another. It was my possibly dodgy first part made anyhow. :)