Or buy one from the uk.
I purchased two of the adjusti brand ones .
I have used a few repuatble companys like veals / rutherfordsangling and gerrys of morecambe they all have a fair number of styles.
The gemini mould is a awesome bit of gear BUT it can get a bit pricey as the gemini head units must be used .
The ron thompson moulds are to be avoided rough and leaky ….
Also read all you can find about working with molten lead and pay full attention to all the safety warnings molten lead is bloody dangerous.