Well you can do a couple of different things. You can either go stock or aftermarket. Stock will be ard as it will mostly be ebay. After market gives you some options. You can get universal headlight mounts to fit your forks and then whatever headlight design that will fit. Much of this can be bought new.
You will also need the signal lights.
Partsnmore.com seems to stock ok with decent prices. Check them out, if anything, you should get some ideas.
The ride IS the adventure. The destination is just to get gas!