My back
yard is a salmon berry thicket. It's more of a weed than anything else here in SE Alaska. I'm constantly cutting back shoots and right now I'm in the middle of trying to clear out a bit more area to use as garden space so I'm chopping down whole shrubs (they grow into 8ft tall shrubs here). Most of what is in my yard are yellow and orange. But their are a few red around. I've never been able to tell any difference is sweetness based on color. They do very a bit in taste but I think it has more to do with the growing conditions and ripeness rather than color. The best spots get lots of sunlight but have cool, damp soil underneath. To little sun and they don't get sweet.
I could send you as many as you would like. These guys readily sprout from
root cuttings. In fact I've taken to burning them because unless I have a really hot pile going they survive even in the
compost only to re-sprout and take over that area. So I'm sure they'd be just fine going via regular shipping. I can fill a flat rate box from the USPS for you with small cuttings. I have a bunch of roots with small sprouts I can easily dig for you. They'd have to be smaller (less than 12") to fit in the flat rate boxes but they'll grow.
It would be two years before you can expect berries though as these guys fruit on canes that are at least two years old and become more productive as the bush matures. I could try and send you some larger plants but it's likely be in the same situation of shipping costing quit a bit. I think you would want to wait until they went dormant though if you were going to try and ship entire plants.