If you're trying to keep the Arashikage Tattoo, you could go with the SE V2 body. The arms are a much closer match to the hands from SS V1, you just have to make sure to cover up all the black on the main portion of the body.
There are quite a few pictures up over at Hisstank.com now: https://www.hisstank.com/gi-joe-news/conventions-9/gentle-giant-ltd-comic-con-2014-arah-jumbo-o-ring-gi-joe-case-images-13199/
I don't think I'll be picking up any of the characters that already have a figuarts version or are likely to in the future, but I could see myself picking up things like Kid Goku, or a Master Roshi, Oolong, Chi chi, etc. if they made them.