I think the design of the sliding carraige might be different to the one I have, see attached photo, not able to upload, so put picture on Photobucket see http://i807.photobucket.com/albums/y...nSideGuard.jpg
I thought the saw guard was attached to the base plate of the saw. Looking at your photos, seems to be attached to sliding carraige. I have a Triton 235mm TA235CSL. After shopping around a bit in UK. I got it for £149.99 inc vat inc delivery. Smart top quality bit of kit.