AFAIK Arias don't do 'off the shelf' stuff apart from standard applications and overbores. They are however prepared to custom machine pistons to your spec. There is a form to fill out on their website, once filled out, it takes about 4-6 weeks to deliver your pistons. Price is about 600 pounds, you can call for advice they are very helpful. Take a look at American piston and rod combinations, off the shelf for 2.0 Zetec turbo. CR is quite high, but you could get them dished a few cc and they would be great. Forged rods come with them so no need to worry about something not fitting. the price is really good too.