Looking to get some advice on converting my 2007 Fiesta ST150.

Have looked at various options such as supercharger and turbocharger kits or possibly going for a cosworth engine. If I'm going to pile that sort of cash into the project I would like to create a MK6 RS with the wide arch body kit.

Does anyone have experience of installing a cosworth engine to a fiesta st150 and how much work is involved and is it worth it?

I'm headed in the direction of getting a turbocharger kit from AED with a cosworth inlet manifold and wide arch body kit.

Any advice welcomed