Catching a drain cover in the wet with an open isn’t fun, that’s when you miss a decent plate LSD. Even the OEM torsen has its limits. A diff is only part of the overall package but it’s all down to what you can justify spending.
As a basic no frills entry to go with it you would need good suspension (not hard or crashy, doesn’t need to be stupidly expensive either), reasonably sized wheels with correct offsets, good tyres with a decent sidewall (Mr Noz ),
Then you add engine mounts, gearbox mounts, diff mounts and rubber doughnut for the prop.
After that would be rebuilding the subframe with OEM parts.