Thanks for your interest and attention,
A few developments here - some a surprise. Established contact with current owner, who fielded questions via phone in a manner akin to interviews found on the CRG board. Hope to see actual car as it emerges from storage post May 1st (this being 2012). It has happened that people associated with the construction of a vehicle or the restoration of the same have stepped forward in relation to posts made of this or that project, whereas this will constitute the first time an actual owner might permit me the kind courtesy of making a first-hand inspection of the topic - a good feeling this. The original color of the Herb Adam's car was a shade of green, hence little things are illuminated for application to matters. One finds color chips online, isolates said '64 Pontiac shade, orders paint, presumes some mix of carpet glue/corrosion/plus welding on the floor and cage structure to be reproduced - and with a deliberate intake of air proceeds ahead.
The polygot chassis worked up above has now been tossed aside. For investigation and questions fielded on hobby boards, two different tool Oldsmobile 442's have been tossed into the subassembly fire - one a 1:25th Lindbergh '67 442, the other a 1:25th AMT '66 442. The AMT tool has a one-piece full perimeter frame much like the AMT '62 Catalina, and is properly sized for the platform seems shared. I haven't been 'doing plastic in 1:25th' for some time, hence I wasn't aware that my kit selection wasn't optimized for that which I am trying to accomplish here. Something a little strange, but the floor will be double-walled for the top of the Lindbergh '67 442 floorpan tool looks about right when viewed from the top side, whereas the AMT '66 442 floorpan and perimeter frame will quite easily and confidently be employed from below for it is all of a piece. The AMT tool isn't acceptable when viewed from the top bare, or really subject to disguise, hence the decision made to cover it. In sum and for all the lessons learned, not a very good use of time, and many missteps taken concerning how I've been going about matters. A very fine BOP differential is included in the AMT '66 442 tool, while the front suspension including distinct upper A-arms and the like will be noticed.
Sometimes the work area must be cleared and a panalopy of missteps forgotten. Thankful then that the shell wasn't modified (a rare resin casting - only 55 of these were produced and hence it's irreplacable), and that the Lindbergh tool will afford a firewall and topside floor even if the dimensions are fudged atop to bottom to use the same. The AMT '62 Catalina does feature the best Pontiac engine, updated in various ways for the use of later-iteration parts - hence less total waste. I feel rather like a Civil War general that has withdrawn from the field of battle with my forces intact but nevertheless badly bloodied - the reason for which only I can take the blame. An odd thing to relate, but a quite accurate description of my mental state all the same. A far better base and entirely better-reasoned way forward to be seen in photo images soon - thanks...
Mike K.