Here's your "friend" Steven's Facebook page if that might be of any help:
https://www.facebook.com/steven.jayne.10
I didn't see any Model A's in his "collection" and not really the old Ford BBQ collector kinda guy I would guess.
He works as a welder for this company so you might be able to track him down there:
https://tankservicellc.com
I hope your Ford BBQ eventually arrives, but in the mean time why not file a claim through PAYPAL for an undelivered item. If the seller can not produce a shipment tracking number to verify that the item was shipped and received, then you should be able to get your payment back from PAYPAL at least (unless you sent your payment as "Friend" or "Family" in which case you will not get reimbursed by PAYPAL).
What is the eBay item number of your missing Ford BBQ? Perhaps it will show up again on eBay for sale a second time!
Was it one of these Ford BBQ's:
Best of luck.