I have a manual for 3B model, a bit smaller, but operation is similar. They aren't identical in layout; no footprint there either. Made bookmarks that cover related info, including youtubes like that above.
Thought of making blind transfer punches to mark metal strips, holders for laser rifle/ scope aligner and project on a sheet, a pointed rod with a bubble post level, slotted bars and sliding plugs where there are overhangs...probably wind up using a little of each.
Occurs to me, to take a series of good overlapping pictures; depicting the various positions to analyze offsite.