6 Bore Flintlock DB shotgun project

A gigantic 6 bore double shotgun for restoration. The gun is missing it's locks, barrel locking plate, ramrod, and requires a number of woodwork repairs. Trigger sets, trigger guard, ramrod pipe, butt plate all present. 32" barrels - 119cm total length.
 
it is highly unsuaual to find a flintlock double shotgun in this bore size, as most large bore fowling guns of the time were single barreled only.