Hello everyone new to this group looking for advice, I've a discovery 1 300tdi great old workhorse but I've completely blown the engine and the rebuild estimate has an awful lot of zeros in it ,just wondering where's the best spot to get a reasonably priced replacement or I'm also thinking this might be an opportunity to upgrade to a bigger engine as I tow a lot of heavy loads and find the 2.5 underpowered and input welcome thanks