Rockauto.com sent my 1954 steering box to Lares. Rockauto's price, with shipping, was better than dealing directly with Lares..
More important: Lares does not know what a 1954 truck steering assembly looks like (check their web site). They were almost rude with me when I demanded they take the incorrect unit they sent me. They assured me that I was wrong - that I must have the optional power steering option (in a 1954 1/2 ton truck

).
They will prime the rebuilt unit or paint it semigloss black.
Some members have rebuilt their steering box - maybe they will describe how difficult that would be. Rebuild-parts kits/parts are available from reproduction parts vendors listed in the vendor list in the Links section here. Classic Parts and Jim Carter and maybe Chevs of the 40s - maybe?