It's very easy to collect a tree like this if you have a few thousand dollars handy.
The picture you linked is not the procut of simply digging something up, but took years and years of patient work to acheive. Work like this:
http://internetbonsaiclub.org/index...3&topic=16497.0
I agree with you that the base of the tree you linked is fantastic. Thry double-clicking on the word nebari here. Nebari takes a lot of work but the results can be rewarding. Good nebari is produced like good branching, with strategic cutting and manipulation of roots
pootsie