bare metal tanks are one of those fad things that honestly I can't wait for it to die. It looks ok I guess, but it really invites almost no longevity to the bike's finish. Either you have to maintain it or it rusts and that's a lot more work than just an occasional wax finish on paint. I consider it a sign that the bike's owner is a person that doesn't get motorcycles and doesn't ride all that much, most of the bikes I see it on are rolling bratstyle/new cafe racer garbage anyway so at least there is consistency.
Honestly your tank is in good enough shape (assuming the inside is in nice condition) that it is a good project for you to learn basic body repair. First take the tank to a paintless shop and see if they can pop the dent out. If they can then have them do it and then sand your tank down to bare metal. Buy some fiberglass reinforced body filler (marglass or similar product) and apply to the entire tank in a think coat. Sand it down (using a sanding block) till it is almost all removed except in the low spots. If you still have areas that are a depression apply more filler and sand again until it is perfectly smooth on top. Once that is done you can either take it to a cheap place like MACO or Earl Schieb and have them spray it or you can buy a couple of cans of Rustoleum "Stops rust" or "Professional". Apply 1 coat and then wet sand (600 grit) 24 hours later. Apply about 6-8 coats with wet sanding (800, grit, 1000 grit, 1200 grit moving up in between each one or every other one). How you get the paint on there is not as important as how you prep the surface of each coat. after the final coat buff with compound. If you want stripes you can buy vinyl from a sign shop and cut your own or you can buy a stock decal kit and apply that. or you can mask and spray them on. At the end you want to cover the whole thing in clear (rustoleum has a UV resistant clear that will protect the paint and is compatible with their other paints).
Now, header wrap is good for hiding ugly pipes you must know that if you have rust already in the pipe header wrap will just make it worse. Having a hole in your exhast does affect it's function. If you want to remove the rust (wire wheel, sanding disc, or sandblasting) paint with a high temp paint, and then cover with muffler tape (or some other aluminum tape that can close the hole) and then cover with header wrap that should hide the repair and keep you rolling. That is the cheap repair. The proper way to fix this is to buy a new pipe as some of those holes look too big to weld up. Once you wrap the headers know that moisture will get trapped and it will likely rust the chrome underneath, but honestly who cares - those pipes are on borrowed time anyway.
