The male is "borderline". Not much help is it? If he is truly 24 months old at this time rather than being 2 next summer then you have a decent shot. Age is more important than size.
I'm in exactly the same boat with a small hypo male of my own. I decided to let him try. He is locking up with and courting his female, but I won't know if it worked for a while yet.

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Travis Rose
Lazy S Snake Ranch
(859) 582-7310
1.0 100% DH for Snow Boa
1.0 Hypo, 66% DH Moonglow Boa
0.1 Normal Common Boa
0.1 Circle Back Normal Boa
0.1 66% DH for Snow Boa
0.1 Albino het for Snow
3.2 Kenyans
0.0.16 baby kenyans
0.1 Jungle Carpet Python
0.3 Dogs (1 Full Pitbull, 1 Pit/Husky, & 1 Bernese Mt. Dog cross)
0.3 Cats (1 fat, 1 old, and 1 insane)
0.1 Very understanding wife
1.0 Toddler (WC...still bites and musks)