i was worried about a 1.085 og beer too, but im not sure what his current set up allows. Youd need a BIGGGG beer. Barley wine or something close to 12-20%?
shoot an email to some of the belgian breweries... maybe brewery ommegang, im sure one of their brewers will give you some sort of advice as to the correlation between OG and Aging time.
Mead or wine just seems easier... but im sure this could still be done.
You could always brew a 21% imperial/barleywine with him on his 18th birthday to age for 3 years! .... or something like that.
Primary: EdWorts Apfelwein, Summer Saison
Bottled: Brown Porter, Dunkelweizen, Cream Ale, IPA
Planned: Witte, Wheat Stout, Mead, & more Apfelwein!