Just keep an eye out for a fin nor 20, they are a canny price for a hardy real.
I have a Fin Nor 20 and a Shimano Torsa 20, both great reals with a 6:1 ratio but the fin nor is far cheaper and abit stronger built, just not as smooth or as light as the Torsa.
We often fish wrecks off the Tyne in 260-320ft down and over in Norway so a 6:1 real really helps.