The Bailey style number 7 jointer plane is the most popular option, especially the Stanley Bailey No. 7 jointer planes (find them here). I would avoid buying a number 8 jointer plane, unless youre pretty strong.

What is the most valuable Stanley plane?

Stanley No. 1 Bench Plane This slightly rusted No. 1 and original box sold on 4 May 2009 for $2,918. It was the most expensive Stanley Plane sold on eBay in 2009.