1) Buy a 100% Het male, and breed him to your normal females. Sell/give away all the males produced from this breeding, and keep all the females, that will be technically possible Hets for whatever morph your 100% Het male was, lets just say Hypo. So, now you have several 50% Possible het female Hypos, and your original Het Hypo male. Sell the male, buy a Homozygous male Hypo, a visual male Ghost, and breed him to the 50% Possible het females you produced. You have unrelated breedings, and should produce some visual ghosts, and all your offspring will be 100% Hets.
2)Buy two 100% Het females, and buy a het or homozygous male later on.
Dave