Bridgedeck Headroom?

I needed to dry fit the mast beam to workout the necessary reinforcements to bulkhead #3. (Note to future Vardo builders, fit these when making the bulkhead. but they were not shown on early drawings) Anyway, you can see my dilemma about when to do the bridgedeck as even John is impeded in getting thru the shop. As a side note, I measured the bridgedeck clearance on a Seawind 1160 and it appears the Vardo clearance should be about 50mm higher at comparable loading.