My 84 420 that I picked up for $40. Somewhere along the line before I got it somebody ditched the Mallard Helocmatic and threw on a set of 7speed 105 Hubs laced to 700c CR18's and Aero levers. I picked this up to flip but the more I rode it the more I liked it and it is the official beater. Paint is screwed up bad but it rides great. Threw a Pave saddle on it, set of Bar ends and Deore LX derailers that came off another flipper (and put the Acera and Vetta on the flipper). I have the matching LX cranks but like the look of the Sugino's so sticking with them. It also got a set of Conti Ultra sport 700x28's this week.
I have been riding this more then anything else of late.
I had a 83 420 pass through my hands on a flip. It was too small for me.
I had a 87 300 I flipped and a 90's 720 Multitrack but nbo pics handy.
With some luck maybe I will have a 600 with full 600 this weekend.