Others will probably have more detailed suggestions, but for that plan, a simple dollar cost averaging strategy is easy to set up, hard to mess up, and will perform pretty well.

I'd recommend putting it in a traditional ira up to the yearly limit, and then scheduling a regular monthly purchase of a retirement fund or broad index fund.

You only pay CGT when you sell them, ie, when you make gains on your capital. So I wouldn't worry about it for now, if your strategy is to sit on the stocks for a long time.