I've got a pdf file of the manual. I regularly e it to anyone who asks. PM me
I have that swingarm in a DR400 frame. I think it goes in to the SP frame with the same mods. Sleeve the inside of the pivot with tube to take it up to the correct width and reinsert the SP sleeves bearing pin etc. On the DR ideally it needed to be offset a few mm but it works fine set up centrally. All parts for the chain tensioner came straight from suzuki. But they did send the wrong spring. There were 4 on ebay so sorted.
Possibly worth a try to see if the parts you need are still in stock too.