Anyone have '87-'93 LC4 600 parts?

[Big Mac]

Looking for a desert/high capacity tank for my sort-of old school dual sport bike for a 4-day 500 mile ride this summer. Any leads on someone who may have a 5-gallon or so tank for a 600 thumper would be appreciated!

Looks like this: http://www.125er-forum.de/attachments/165-motorr-der/22679d1268816577-ktm-lc4-600-620-bj-93-dsc00699.jpg

Much thanks!

Jon McLean
Lake Grove, OR