I agree the 90 degree slope will be different, but I think it will capture the intent of the blueprint. The surface will pass through the curve at the cross section and that's the only info we have.

Filleting looks like it may be complicated. I'll start playing around with it after all the family goes to bed tonight.

Is there a forum link regarding how to model a screw? I need to figure out how to make some to attach the neck and pickguard.

Thanks again for all the help.