Heteropoda venatoria or one f the variants is usually the go to starter spider. They are cheap, common, easy to find, and will give a good feel for their speed and flightiness.
From what I understand there is no real Diplura sanguinea in the hobby. I also have some from Joe, and the male is about 2 inches mature, so I wouldn't expect females to be much bigger then 3 inches. I would assume the ones Joe was selling are the same as what the is being called Diplura sp."Rurrenbaque" over sea's. Not sure why names change when they cross the ocean, but it happens. Pictures of Diplura sanguinea and Diplura sp."Rurrenbaque" spermatheca can be be seen here in the provided link and are significantly different. . Bastian Drolshagen is the authority on Dipluridae.Earlier was an amazing molt Tom! I also have a question for you that you may or may not know...what size do Diplura species Sanguinea get to be? Picked one up from Joe R. awhile back and I believe it's a she and she is currently a little over 2" now.
Heteropda venatoria is the usually go to starter huntsman spider. Cheap and easy to find. Your best bet is to get one well started though, as the tiny babies can be fragile in any species and usually require small feeders like fruit flies in the beginning. They grow fast though. Don't be turned off by their shorter life spans though. I've had females live up to 2.5 years. They are super fast though. I always say a slow huntsman will make your fastest tarantula look slow lol.
No I believe you are right. At the time I posted them that's what they were being traded as here in the U.S. I believe the 3 spiders sold here in the U.S. under the names H. immanis, H. insignis and H. murrayensis are likely all the same thing.I was under the impression that holconia immanis had darker bands. Maybe I'm mistaken