I am no SII expert, but this seems like a very good price for a pair of cantrails:
https://www.ebay.com/itm/SUNBEAM-AL...ash=item41d308f9e0:g:hAkAAOSw0W5Z9m1z&vxp=mtr
The same seller has a SII gas tank that looks to be in pretty good shape. She wants a lot more for that, although they are made of unobtainium.
https://www.ebay.com/itm/SUNBEAM-AL...ash=item41d304a968:g:PtgAAOSw~QRZ9iLe&vxp=mtr
https://www.ebay.com/itm/SUNBEAM-AL...ash=item41d308f9e0:g:hAkAAOSw0W5Z9m1z&vxp=mtr
The same seller has a SII gas tank that looks to be in pretty good shape. She wants a lot more for that, although they are made of unobtainium.
https://www.ebay.com/itm/SUNBEAM-AL...ash=item41d304a968:g:PtgAAOSw~QRZ9iLe&vxp=mtr