Ford Motor Co. has completed an $130 million renovation of its Ohio Assembly Plant in Avon Lake for a new Econoline van assembly line. Now the automaker needs a few for-sale signs. Ford has begun shopping the Lorain Assembly Plant that will close Dec. 23 as part of a consolidation plan, said Ford spokeswoman Anne Marie Gattari. So far, the company is far from identifying a potential buyer for the Lorain plant, which has 4.1 million square feet on 279 acres and is a good bit too large for most startup businesses. Ms. Gattari said Ford, which is mulling other plant closings nationwide, hopes the future tenant is a good fit for both the plant and the city of Lorain. Since opening in 1958, the Lorain plant at various times produced the Ford Falcon, the Mercury Comet and the Ford Thunderbird, in addition to a generation of Econoline vans. "We would like it to be a viable contributor to the community, no matter what it might be," she said.