What to do with commercial/industrial property?

[Derek Gibbs]

I have a property that used to be a tool and die shop and is now being leased as two halves of a 30,000 sq. ft. building.

The first half is being leased by an Ebay retail arbitrage business that was in both sides but is struggling and reduced to just half at lease renewal. 

I'm looking for ideas for the second half, ~15,000 sq. ft. 

The building is heated and has a loading dock as well as large roll up doors that almost any vehicle can fit in.

Any ideas are appreciated.