i do believe La Bella HRS strings would also be long enough. i remember reading a thread a few months ago about guys with 8 string septors having trouble getting regular guitar strings long enough for some of the tuners. the La Bella brand name came up a few times. i think it even says on their site that their strings are 40" or something. cant remember exactly.
if you were wanting to get several sets of D'addarios, there's a user on here who can ship you a few sets at a time and give you a little break on the price. i bought 4 sets from him a few weeks ago.
Agile AL-727 EB
Avatar 2x12 w/ Celestion G12K-85s