Mandolin Rental?

Geoff LeCrone reached out to our orchestra to enquire about renting a mandolin for a performance of Mahler's Symphony No. 8 with the Minnesota Orchestra June 10 to June 12.  He would need it from June 3 through the 16th and is ideally looking for a bowlback, but perhaps an early 20th-century mandolin would be appropriate, too.

Does anyone have pointers or ideas for a rental?  Jonathan and Lon can provide Geoff's email.