no probs, they also do a lighter PE 4-6 blank, GT76HP.
Peter from GCCR brought quite a few of the 7'10" and 7'6" ones in so there's a few out there, may pay to email him and see which shops were ordering a few, there may be stock floating around at places like campbells in WA.
i have built a few of the 7'10" pop paradise ones up. rated PE8-10 and 150g. while setting up the guide spacings i did some load tests, 10kg >90deg. dead lift off the tip loading nicely. weight is good and casts very well. IMO right now the best GT blank available to rod builders
of note there are some 1 piece blanks well suited to popping in the United Composites lineup, and they are just about to release their dedicated 2 piece popping range going to be 7'8" or 7'10" i think. they were slated for release a while ago but have been held back as they are working hard on getting the butt joint spot on. 100% graphite in different modulus along with a dual helical layup, they should be the goods. i build a fair number of their regular style blanks up, some of the lighter spin and baitcast models i have built are the best i've come across for our styles of fishing.