Not really Wokka. The router comes with a L shape bracket that is solid enough to be used as a guide but is just a little light to hold the router on its own. A more solid L bracket would be better. My little arrangement with the rope keeps the L bracket under light tension and holds the router quite steady.
Yes, the job moves under the router and follows the pattern or rebate bit bearing. The base board is standard plastic coated builder concrete form ply. The upright strut is a Uni-strut piece bolted to some pine 45x90 under the form ply.