Just for grins, here is the template I used:
This forum talks well of BMW & Hannigan,
Im looking at one on craigs 800 miles away.
The template's a good idea, Im replacing fuel cells in a Floatplane
and laying them on the floor under it.
Happy day
I do have 1200LT BMW. The ride is beautiful, very smooth and responsive. Hannigan make a great Kit. I do have mine for sale 13,500.00 I have all of the build paperwork from Hannigan ( they built this one ). 850-982-3567 if your interested.