In the market for an Encore (it's the only model that has the clearances I need) but can't afford a new one. Found a stove on CL for $350. It's black and I'd prefer the brown enamel, but I can't be too fussy. The ad says that it's a 1986 vintage. No model number. Glass doors. These are the good years right? Is it a convertible stove? Any tips on what I should look for in terms of damage?