Should I go with a shingle roof or metal roof?

He already did a number of improvements including a new metal roof so there is no major work to be done.

@John Smithe - This is going to come down to the following:1) Your personal investment philosophy: your goals, your interests, your time horizon, your risk tolerance, and your interpretation of world events 2) Your unfair advantage: your skills, your expertise, your network, your resourcesBiggerPockets tends to bring together like minds and similar experience, so this sampling bias might result in concluding that a large multifamily in the Midwest, for example, is the best use of your funds.Ask the broad universe of investors the same question, however, and your answers will be quite different.Real estate might well be your best investment, but so might be starting a business, or picking stocks, or buying precious metals.  

Between this and the metal scrappers, I'm hoping to do this without a dumptser or junk removal.

That person had to get a permit for the work, the fine was double the cost of what it would have been had he got the permit.I just read an article about someone who put a new metal roof on a house, and did not get a permit. 

I had the crown removed and will get a zirconia crown as I think I had a metal allergy to the crown.

Real estate, precious metals, perhaps even a bit of cryptocurrency if you are feeling froggy.

Also if replacing I was thinking of doing a metal roof.

For the kitchen I added a dish cloth, two wine glasses, a bottle of non-alcoholic wine and a Ikea metal fruit basket.   

Personal Liability: For claims due to Bodily Injury or Property Damage that you becomeLiable for and which is covered under the policy.