I lived in Boston for three years and my rover performed fantastically while the amg was simple dangerous. I didn't own a diesel up there.

A 90-94 Classic Range Rovers trade for less than your car is worth and decent truck sells for probably 4-8k maybe les in your area because of rust. I saw a fantastic 93 lwb range rover trade for 7k on ebay. I had to use some serious restraint from buying, but I knew my wife would divorce me, I already have one...

At any rate if your interested internet search for Rovers North in New England (I think it's in Maine, maybe Vermont) anyway they would be able to direct you further about the trucks in your area (They are the largest parts deal for rovers in North America) and they do sell them too to locals.

Feel Free to pm me for I am a rover nut too.