Thanks Mike,
The frame that is in there right now is an un-boxed one that measures 2.5 x 6. I am told it is from a 30's heavy duty truck, but I have no idea if that is A) in fact - true and B) what kind of truck. It appears, aside from the lack of boxing to be stout indeed. It has created some cabin space issues, but I think I can work around that. The engine itself will fit between the rails and the placement of the mounts should work out okay. Length wise it will have to be modified up front to allow for the engine to fit properly.

I have two questions for you: Do you think I can narrow a heavy duty I-beam from say a 4700 series International? I ...think...they are forged, but they may be cast
The track width from something like that will be just too wide otherwise

Second You mentioned you have had a frame laser cut. Do you design them? I am trying to find a professional to tackle this part. I can only do so much with my resources and skill and realize I will have to pay a pro for some things.

-Al