[dsraven]

what I was gonna say is that you may have to split the cab and add some to get the width right for the school bus track width. being a split window can you have the best scenario because you can cut the cab in half and add down the middle and then just get individual flat safety glass cut to fit the new size for each side, no worries of a custom one piece glass. if you were to do that you would end up with ample cab space for some nice comfy seats and a console. like you said, upgraded everything and possibly air brakes. win all around. you couild possibly use the school bus firewall and floor pan if it worked out. that way you have the reinforced firewall with the pedals etc already mounted and the steering column would possibly work as well. all newer parts that are available if required for repair later.