I'll help you out, if you'd like. (I like working on the 47mm's more than wearing them.) PM me if you're interested. Lots of happy buyers on RG and HF if you want references.
I just sold a 217 I molded and miss it already.
Oh well. Thought I'd ask. My dishonest intent is caused by Chief's failure to offer another run. I need one of his for my project 177. Please forgive my desperation.
No, they don't come with tubes, as these tubes wouldn't fit over the connector of the wire lugs in the contemporary Radiomirs. But Rad straps are usually 27mm wide at the luig, tapering to 22/24mm at the buckle, rather than the 26/26 found on fiddys or 24/24 on Luminors. This extra width helps secure them at the lug.
It depends on the Radiomir model. Typically they have a tube that joins the two removable wire lugs and so won't accept a strap tube as well. And the Silix Kampf case has fixed lugs and won't accept a strap tube because it wouldn't fit between them. But you can get strap tubes from panatime.com or ewatchparts.com.