hey would any body have an idea what a 1905 studebaker garford in excllent condition be worth

That's going to depend entirely on whose definition of "excellent condition" you use. Has the car won any national awards? If yes, which club? Is it a good runner, or does it just look pretty? Can you post a photo? Are you selling, or buying? Where is the car located?

i'm just after a rough estimate can you help out

$10-25,000

thanks for that