You don't need the allgrain setup to make a barley wine - You can take like 4 or 5 pounds of maris otter and 2 pounds of munich malt, maybe 4 oz of crystal 70L and mini-mash it in a bag in a pot of water.. let's see ... 7 pounds of grain would need 8.75 quarts of water so about 2.19 gallons of water mash at 155 for 60 minutes.. sparge with roughly 2 gallons of water at 170 - You should be at around 3 gallons of water after accounting for some absorbtion by the grain.. boil and add ~9lbs of dry malt extract and boiling for 60 minutes with a rigorous hop schedule like an addition every 15 minutes with the biggest addition at the beginning of course. If you can do a full boil I would add water to take it up to 7.5 gallons and boil it down to 5 gallons to get better hop utilization. Might end up being a 90 minute boil.
crank that sumbeyotch to like 80 IBUs . Galena I would use for bittering.. maybe 2-4 ounces, Cascade 2-4 ounces, and then I'd use some kind of noble hop for flavor/aromas - I wouldn't dry hop.
That's my thoughts on barleywine. ferment for about 3 weeks, rack to secondary, ferment for another month and then bottle. Hide every single one of them somewhere in a safe place.. I'd put them in a rubbermaid and hide them in our utility room buried under crap so I can forget I made it.