hello Bruno, and welcome. it's great to sense your excitement! you're going to have so much fun!
as for your questions:
1. the Honda manual says SAE 10W-30, and despite hot temperatures in the summer, I don't think there is a strong reason to vary from that. I think most people who care about their bikes use semi-synthetic oils (Amsoil, Motul, Mobil 1, Castrol, Pennzoil, etc). be sure to use a motorcycle oil and not automobile oil, as that might damage the wet clutch.
2. you should be able to buy an oil filter cap wrench very cheaply (under $10), like this:
3. lubing the chain is a necessity of course. a basic ratchet wrench set would allow you to do other easy stuff, like service your brakes. if you want to do more, it's worthwhile to invest in the service manual, which your dealer can provide.
4. most people try to park their bike off the street, and maybe you can find garage space near your house? but if this is not a possibility for you, you're taking the most useful steps.
5. the owner's manual makes suggestions about suspension settings. try things, take motes, and discover what works best for you, your weight, and your riding style. plus the road surfaces...
6. the manual specifies 86 octane 'regular' fuel, but our rating system is different than in Europe. our 86 is equal to about 92 RON, so even your 95 is more than is necessary - this is not a super-high tuned engine!
7. the obvious thing to say about a new bike is "take it easy"! this can be a VERY fast machine, and it takes time to get to know it well!