Allstate Parts obsolete?

I have an 1965 allstate 125…(VBB)
i need a rear hub that is 27 tooth…
apperently this part is very rare and obsolete and all i can get my hands onto is a 38 tooth hub…
does any one have the part number or know where i can get it for this hub?
or better yet does any one have this part and is willing to ship to toronto, canada???.. i cannot find this in north america AT ALL!!!