For 60 - 70 MIN, I just did the highest node and it's been a quick ride with enough scrips to gear up my BTN and get some of the HW folklore stuff that I haven't got. As long as I get to 493 collectable, I usually get level 3 with the occasional level 2 collectible. It's been rather fast but if you want to do it in 1 day instead of 3 or so days then supplementing with leves probably helps.
edit: Oh and GC hand-ins. Never not do them. some nice exp
edit: Oh and GC hand-ins. Never not do them. some nice exp