Keep the gear that already works
Build around your starting point.
Choose what you want to make and tick what you already own. You get an initial planning checklist: the parts a setup like this needs, which are required, the connection chain, each reviewed record's documented requirements, and the gaps this site cannot fill yet.
Deterministic template, no automated guessing, no account. Your choices travel in the page address (a GET request) so the server can render the list; this site does not store them, but like any page address they sit in your browser history and in the host's standard access log. No prices are published yet, so costs show as "check at merchant".
Keep what works. See what is missing.Your setup list will appear here.