I like it a lot. I didn't even notice the wheel base issue until I read the suggestion, and they a right about the proportions. TarheelRick suggested narrowing the C pillar. Doing that would not be that involved compared to the work you have already done. Looking at the top this may even solve the appearance of the wheel base. You could reduce the length of the deck between the open bed and the rear window. Just need to leave enough room in the cab area for a 1/25th driver not to hit the back of their head on the rear window. Maybe a look at how Ford did the Ranchero and Chevrolet did the El Camino to give you a good idea of the proportions. Please stick with this as it looks very much like something Ford could have done. The only thing I see as an issue might be the bed floor. Not a lot you can do about the differential kick up in the floor since it has to do with the thinness of the body and you do have to clear the differential. Maybe a stepped bed, lower behind the differential an then level going forward from there. Very cool looking conversion.