If he is only 50% het, then I would avoid pairing him with anything that is possible het hypo. To prove him out it would be best to put him with a visual hypo.
If you don't want to go the hypo route, pastel, yellow belly, fire, or a BEL complex (Mohave/Lesser/Butter) would all be excellent choices and are fairly inexpensive.
thanks for the info man I think i'll go with a visual hypo and if he doesnt prove him self i'll just get a male visual hypo.