A lot of people complain about PayPal, but if you are careful, you should be OK, we have it on our site already several years. We run the smallest FQ package and three different sites use the same PayPal account, so you have flexibility enough to start with. They all do however, have the same header image but that is ok with us.
No dedicated server needed for PAyPal itself. Now, your e-commerce might need it in future, but probably nonsense to start with it.
The biggest problem is that PayPal has a $ 500 limit to withdraw to your account each month. We managed to get that lifted, but mostly you need to mention all kind of private things or link a credit card to your PayPal account, give Soc Sec numbers etc. And make sure you never leave much money on PayPal, get it out asap. That is SERIOUS, they sometimes freeze accounts and then it can take a long time before they unfreeze it.
I am not sure anymore where I uploaded the URL, but our websites don't display this non-secure item thing, would not worry too much about that unless your eCommerce is running in the thousands per week, but then you should get away from PayPal anyway.
our site are below, the link brings you immediately to our page, follow the link there and you will see how it ends up with PayPal. :
CzechEmgirationMuseum.com : donations
CzechFriends.org: donations
CzechAncestry: payment for services