Sooooo... after much bargain hunting, I now have the drivers (or I will, when the woofers ship) for an old-timey 8" based 3-way.
Woofer: MCM Audio Select 55-1240. I picked this one because it has advertised parameters that indicate it will work in a true "acoustic suspension" alignment, has a groovy old-timey clear poly cone (looking at you, 80's Infinity), and is obviously 8" in diameter. It also has a little more throw than typical 8" woofers in this price range. Not a lot of choices for drivers that look old fashioned out there, these days. I considered using a pair of Dayton Audio 8" Classics - but they have weird parameters. They will not dig at all deep in a sealed alignment, and going vented violates the spirit of the project - plus they require a dorm fridge for an enclosure. They look right - but, come on...
Midrange: Foster 095M1301. 1-1/2" dome, non-chambered mid. Big rectangular faceplate. Voice coil terminated in a visible manner (wires stick out). Beautiful old school midrange with 800 Hz FS. Found them on Fleabay pretty cheap:http://www.ebay.com/itm/231268049005?_trksid=p2057872.m2749.l2649&ssPageName=STRK:MEBIDX:IT
Other than the guy using a HiVi graph (lol), pretty legit. Cheap, too.
Tweeter: (high probability anyways, unless some other beauty of an old-timey looking tweeter comes my way) Silver Flute (distributed my MCM, NLA, 53-1060) 3/4" dome. Square faceplate. Fits the "look" I am going for.
I hope the mids are more or less linear on-axis to at least 4.5K...
I have a signature.