New to this RV thing! Just purchased a '76 fixer upper

Any RV is better than no RV. Now that you own your first land yacht, the learning curve will be steep with a 1970s vintage rig. Being mechanically inclined will get you home. The old vans were pretty heavy. Keep an eye on your trans and the front end. Those components tend to wear out fast especially on crummy roads. Water leaks can really be a mess. Good luck with your new home.