Ok fuse progressing. Some good news, some bad news,.
Bad news: didn't properly mark locations of front pylon/undercarriage reinforcements properly. so now fuse sides together and engine bearers glued in, difficult to position/locate the reinforcements correctly - doh!
More bad news: Glued in fuel tank floor before I realised i'd missed out front reinforcements.
Good news:
Because I cocked up earlier ( glued them whilst fuse pinned to plan, prior to fitting plywood sides then engine bearers ) I had to cut them off again - which left a cut wood/glue witness to locate top and bottom sections. I also had enough sense to mark on the reinforcements, lines where to cut for engine bearer allowance.
