For the adwords don’t know what support you need with those.
At that site there is a banner that states:
Outgoing email has been disabled for non-staff users.
And looks like the Terms of Service and Privacy Policy pages need to be edited, the starting templates for those you can see also have banners of:
[Forum Admin, please find below an example starting template for a privacy policy that you should customise to your site.]
And:
Change Me
Forum Admin, please find below an example starting template for a privacy policy that you should customise to meet your site’s needs.
With Stripe are you wanting to have that setup to create a paywall for the forum for subscribers only? I haven’t done that but that is something I have been trying to figure out how to set up, also for optional subscription/donation payments not necessarily a paywall to be able to access discourse.
For visual theme design that is what I am most qualified for background is in art history and architecture.