Here is the shopping list Matt gave me; 
Steve's material suggestion looks spot on. I would probably also suggest that - given the relative complexity of the mould - you use a combination of our EMP160 paste, along with conventional laminating resin and glass for the reinforcement. What you can do is use the paste on the inside of all the corners of the mould, filling in the detail and creating a much smoother profile. You can then use the resin and glass (woven glass could be used at this stage) to lay over the paste and add the main strength to the mould. This is a combination that we'll be featuring in an upcoming tutorial where we undertake a very complex mould using a hand layup from (a Kawasaki motorcycle front fairing). The paste and resin can all be used 'wet-on-wet'.

For a hand-layup process suitable for making prepreg parts, here's the full shopping list:

Setting up your barriers (for the split):
Polypropylene Plastic Sheet
Filleting Wax

Preparing the pattern (release agent):
Easy-Lease Chemical Release Agent
#8 Mould Release Wax

Laminating the mould:
EG160 High Temperature Epoxy Tooling Gelcoat
EMP160 Epoxy Moulding Paste
EL160 High Temperature Tooling Resin
Choice of: 300gsm Powder Bound Chopped Strand Mat or/ 280gsm Woven Glass Cloth