Welcome to the forum steve d, what kind of Landy are you after? You have a big selection to pick from depending on your needs and budget. My main tip would be to take someone with you who knows a bit about Landies, there are a lot of dogs out there on the market and you could end up spending a hell of a lot of cash just to keep it up and running. Make sure you check the chassis and bulkhead for rust and holes. Take every one you look at for a good long test drive and don't be affraid to walk away if you're not 100% happy.
As for being "Hands on", don't worry, you will be!!!!!!
Good look with your search and have fun with whatever you end up with!