While not about junk rig, if you can spare USD $5 then I think you will really enjoy this hour long look at the life of Warwick Tompkins.  He really has spent a life on the water, as the title suggests, and compared to some of the free garbage on Youtube, this really is a little gem, and well worth the money in my opinion.

Those of you currently refurbishing, or especially those that have built / are building a cruising boat will appreciate the comments he makes later in the doco.

Preview here: https://vimeo.com/ondemand/alifetimeatsea/165502230

And website here (where you can also rent this and other sailing docos)   https://lifeonthewater.us/warwick-tompkins/