I am enjoying this thread for sure. So thanks everyone.
Thinking about it... As long as I can get rangemasters to fit the 6.5j wheels, it might make more sense given my engine choice. My Saab has the same peak power as this v8, and I can't imagine wanting to put 5.5j wheels on that.
It's the balance between the original look and feel, and the updated engine that's tricky.
And thanks Gotts... That thrumming confirmed what I suspected with those tyres... Rangemasters still winning for me. Continuous centre tread for civilised road use, and decent shoulder knobbles for mud.