There's a nice 3.0s on e bay. https://www.ebay.co.uk/itm/Ford-Capr...0AAOSwzQhgM5LD
I used to have a 3.0 ghia and my mate had a 2.8 i, mine was more reliable and easier to work on compared to his injection model which had a lot of problems.
Early injection systems wasn't good, I converted my TR6 to carbs.