There is a market for any boa but there are many who would not want a "mutt" or mixed breed animal. That said, how much time and money do you want to invest into this project? Any recessive trait will require two generations to accomplish.
IMO, bottom line is decide what you want to have or produce and then figure out how to get there. Breeding your mixed lineage female will produce babies that will be somewhat harder to market or find homes for.
For me I love color so hypo would be the way to go with her.
Good luck in whatever you decide.
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Thanks,
Dave Colling

www.rainbows-r-us-reptiles.com
0.1 Wife (WC and still very fiesty)
0.2 kids (CBB, a big part of our selective breeding program)
LOL, to many snakes to list, last count:
20.28 BRB
13.18 BCI
And those are only the breeders 
lots.lots.lots feeder mice and rats 