I'll bet 90+% of the people reading this don't know what a DXF is. Since that is the case, I think you have a small group from which to pull this information. I have also found that as helpful as folks are in this industry, they draw the line (lol) at drawings and especially models. I tried to get drawings or models of components I purchased so that could finish my drawings and models. No dice. I wasn't looking for manufacturing detail, but it didn't matter. I wish you luck.
THANKS TO: A&M Machine and Fabrication, CCTek (http://www.candctek.com), Hermance Design(www.hermancedesign.com), Paradise Road Rod & Custom, Harry Opfer Welding, Wegner Automotive Research, Clayton Machine Works
If you join SEMA or know somebody that is about the only way I know to get that info. Other wise get out the old tape measure and do it the old fashion way. If you have a High tech machine shop they might have a digital arm and could scan it pretty easy. I do that with motor plates and such.
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Elwood:We're 105 miles from Chicago, we have a full tank of gas, half pack of cigarettes, it's dark out and we're wearing sunglasses.
Jake: Hit it.