Get a paracer, and put as big of a platform on top via foundations and add a ramp that goes down. This can be done with one person but the more the smoother. Get as MANY ankys on the paracers back as possible pump weight in all except one pump that anky with melee. Also keep an argy on top. Use the argy to move your one melee anky. Get metal, go back to paracer and load all of the ankys on its back with metal. Since ankys have weight reduction and don't add to the paracers weight you can carry much more metal at a time. This can be scaled up infinitely, only problem is sometimes the ankys can fall but keeping an argent will help load them back on the paracer
Andy is far by the best use a argentavis or quetzal and go scout around for metal you will need it it is very important especially as when later on in that game you will be needing like 20k on you at all times
Herbivore island is the safest place to grind out metal, there's 6-7 nodes in top and you don't have to worry about anything unless you wack a bronto. If you're lucky enough to find an island server without a base there it's the perfect spot to build, If you do this be sure to put out a forge and UNLOCK it for community use! Don't pillar the whole island like an idiot... Looking at you "stoned construction"!!!