Need help. Old Blackhawk 4 Ton Floor Jack

I just picked up this jack yesterday along with these jack-stands. Going to try and restore the jack if i can find all the parts for a rebuild. Looks to be complete. Have to get a locksmith to make me a key for the release knob on the handle but otherwise, it all looks to be in good shape considering.

 

Recently acquired this very heavy S4 in great working condition and I believe in its original paint. Of course the light is not there or its lens but all else seems fine. Have used it to lift a couple vehicles without issue. This thread has been great to read and very informative.

 

Just picked up a SJ-18. Anywhere I can find some parts?

 

@Sprout Good outfit to deal with https://www.hcrcnow.com/shop/seal-kits/product/426