Swissghost/Andy just PM'd me with his police derived weights with him sitting the drivers seat.
- 360kg / 794# front
- 220kg / 485# back
That works out to a single up driver distribution of:
61% front
39% rear
Total weight one up is 580kg / 1279#
That's about what I remembered, I think...

Thanks again Andy for your valuable information. At least it is to me!