I'd suggest using either 4iu ED or 8iu EOD. Optionally take weekends off, in order to reduce cost (or prolong the amount you have).
Mix with bac water. Duration of cycle would be as long as you can afford - ideally 6 months plus.... minimum at least 3-4 months.
You will still have natural GH - use the exogenous GH doesn't stop it, so you won't need PCT.