a degree in offset wont affect it too much, im after an on-one to use on my G2 frame which is a 51 degree offset
the height drop will steepen it a bit but potentially the difference in rake will offset (sic) the difference. not very scientific sorry
not sure there are many forks as long as the singular, i was after something that length a while back and had no joy
EDIT: if you find you need a bigger reduction in rake to counter the height difference let me know, im selling my bonty forks