I would say get the hand and the dial. Most importantly you need to have a good base/case for modding, get those with AR coated crystal too (this doesnt come cheap). Those case with He valve slightly above 10 o'clock position. For a Bond 007 version, dial and hand change is also 2 must do mods.
EDIT: May I know where do you get the parts from? Thanks... You may wish to share here or PM me.
Be careful that those parts may not be up to standard (missing lume on dial, etc.) Price should be less than half of retail (30 percent maybe). You can check retail price at ofrei website.
On ebay, they are barely worth 30%, was looking for a midsize bezel that is 148 on ofrei, went for 36 on ebay, unfortunatly real part are scarce there and I missed it.