get the scs. or if you have access to a welder and a press and a lathe. do this
order a piece oh chromoly. any thick ness just a bit bigger the the ID of the fork tube. lathe it down to fit in the fork. then weld a plate with a whole at the bottom of the chromoly. cut it to the same size as the fork tube, notch the bottom end [to go with the curve of the forks and the bottom]. lathe the OD of the chromoly down to the ID of the fork tube. then carefully press it in there. now it will work witht sr inverted comp. system. and you have reinfoced frID forks.