that’s just a super investment!
If you want cheaper, get a 4-6k honda/nissan/mitsubishi car that'll get 30+ mpg and lower your insurance. Sell the rover and spend 3-5k on a built but streetable toy/XJ/YJ/TJ/ZJ or whatever your flavor is and use that for a back up DD and for camping/wheelin. Use the equity to buy the wheeler, liability only, and take the extra $$$ and put it away for a rainy day or for a month long trip to Europe or something that will stay with you much longer than your fancy M3 cod piece.
That is basically what I did. I had a buggy, truck/trailer. I was in the truck $650/month between payment, insurance, and fuel. I now have less debt (paid off some bills with equity from my truck), and I have 2 cars with a total monthly cost of $230 between the 3 major expenses. That 400/month savings goes a long way into doing fun things and saving for buggy parts (or beer if you're an idiot like me).
But, I didn't figure that out until I was about 25. It's funny how your priorities change around that age.