For me the 3 easiest choices would be one ,modify a Auto drive pulley from the seventies or eighties Victa mower as I've seen a lot of damaged Auto drive mowers in scrap ,they are 80 mm and take a 3/8 v belt ,2nd would be just machine up a new pulley on a lathe out of scrap steel and machine the centre out so you can weld in a Victa blade plate hub ,third would be buy an old Victa edger that you can remove the pulley from as I've seen a few for sale at garage sales and swap meets for $10, to $15.
Some people have already banned the use of lead wheel weights so I guess it's only a matter of time and scrap lead will be harder to find.
