Dimensions wanted

I am building an almost replica (a little smaller) of the 1904 Stanley runabout shown on page 8 of the Nov-Dec 2013 Bulletin. Most of the dimensions can be taken off that picture and are close enough, but there are some that can't be found.

Can someone tell me the plan dimensions of the body; length and width?

I would also like to find a drawing of the rear axle, including differential and wheel bearings.

Any more information than is provided in that article would be appreciated. Thank you. Stephen