I pasted this and hope it helps, I had a 41 Dodge Bussiness coupe years back and all I can say is they used real steel on them. Mine had the 90 hp motor tied to it with a Fluid Drive Clutch (Semi-Auto)
This company may carry the parts you may need,
http://www.kanter.com//catalog/galle...pt=0&MSb=0&Prc=
The generator may be rebuildable with (If still availible) NAPA parts. It may just need the brushes replaced. Also ask them about front end parts they are pretty good at finding obselete or odd parts Or you could change the electrical over to 12 volts. lots of work replacing wire,lights etc.
Any way heres some info.
Overall production: 68522 units (Custom - 36841, DeLuxe - 31681)
4x2 rearwheeldrive frontmotor car
Body modifications:
D22 Custom, wheelbase - 119,5 inches:
Club Coupe, 3171 pounds, 1045 US dollars, 4659 built
Convertible Coupe, 3476 pounds, 1245 US dollars, 1185 built
2-door Brougham, 3171 pounds, 1008 US dollars, 4685 built
4-door Sedan, 3206 pounds, 1048 US dollars, 22055 built
Town Sedan, 3256 pounds, 1105 US dollars, 4047 built
137,5-inch wheelbase 4-door 7-passenger Sedan, 3693 pounds, 1395 US dollars, 201 built
137,5-inch wheelbase 7-passenger Limousine, 3768 pounds, 1475 US dollars, 9 built
Chassis, ? pounds, ? US dollars, 20 built
D22 DeLuxe, wheelbase - 119,5 inches:
Business Coupe, 3056 pounds, 895 US dollars, 5257 built
Club Coupe, 3131 pounds, 995 US dollars, 3314 built
2-door Sedan, 3131 pounds, 958 US dollars, 9767 built
4-door Sedan, 3171 pounds, 998 US dollars, 13343 built
Engine: 105 hp/?rpm, Straight 6 - cyl, 230,2 cid