UPDATE: I bought the bike for asking price. I've weighed the bike and it's 26.2 lbs.
-Suntour GS dropouts
-Sunshine 5345-P (front hub) & 5345-M (rear hub)
-Araya Rims - never seen these. Aluminum and they curve up across the center vs flat & boxy.
-SR "Apex" cranks. Has "77" on back of arm
-Serial Number is: F520162 and there is a "Made In Japan" sticker on the seat tube. This serial number matches the Miyata format with "F" being 1977
-Suntour Cyclone RD with date code "TD" (April, 1977) & Front Derailleur code "TE" (May, 1977)
-Brake calipers & levers are Dia Compe and haven't looked for date code yet.
-Handlebar says "Sakae Randnner" on drive side front by clamp; and "Road Champion" on non drive side.

The crown fork is chromed and sloped. I haven't removed the rear wheel, but I suspect the 5 speed freewheel is Suntour. It's gold in color. Mismatched 27" tires but they seem pliable and seem to be in good shape, although the steel spokes are oxidized or coated with something light (not rust). The Dia Compe brake levers have quick release piece that rotates out of the way for a QR, similar to ones on mid '70's Schwinns.

This gentleman said he has sold over 500 bikes and said he didn't do any maintenance, just a general cleanup. So I will get to do it and will have a great time.

Please feel free to enlighten me on thoughts. I'm still researching, etc. I'm not going to change anything except cables, esp. brakes because the cables are gunky. I like it already! I need to reposition the Flickstand a little because the metal piece won't flip down - it's too close to the tire.

Photos to come.
[MENTION=73614]rhm[/MENTION] - you make tire wipers right? These are attached on the rear ward side of the brakes, but the wide wiper part faces forward. Does it matter?