Made a start on building a narrowed beam tonight. Plan is to build two beams - one for my bus and one for The Jimps.
Managed to strip the beam down tonight with the help of the Jimp ready for measuring and chopping. I also started to make up a jig to hold the side plates.
The side plate design is already done and I've managed to source some 10mm plate all I need to do now is fire up the plasma and cut them out.
Hopefully won't take too long to get it together. The hardest part is probably going to be getting the old beam out of the bus.