Well, I'll respond to the question about Standards and custom scale length.

As much as we'd like to be able to offer a bunch of options on those lines, it would defeat the purpose of a "standard" model - we limit the options in order to streamline production and keep labor costs down, which in turn keeps sale price lower. Note that it doesn't have a matching headstock either: this allows us to build necks in "batches" - i.e. 10 pau ferro 5 string necks, as an example - so we can maximize production time and effort with minimum waste. Making a 5 string neck with a 34" scale length changes more than just the fret placement, the neck is a different size as well as length, the neck pocket on the body is different, the pickup rout placements are different, and the bridge location is different, so we'd have to also change how the body is built, adding even more labor cost, and this is the reason we charge $300 for that on Custom or Signature. When we were planning the line, this was a discussion in the shop - if we had more requests for 34" 5 strings than 35" 5 strings, we would likely have opted to make 34" the default scale length, but the reality is we are talking about 1 out of about 100 instruments being requested with the 34" on 5 and 6 string basses.
Hope that 'splains why we don't offer it on Standard and Standard Plus models without being snarky.
There are the odd used 34" Customs out there, so if you keep an eye out, you might find a great deal on one someday, if you're interested.
And, the Roscoe family is open to anyone that wants to be in it - doesn't matter to us if you have a Roscoe or not!