Simply for discussion... although at 4 pages now, it might become a little superfluous.
I think the definitions of your categories have changed over the years and the definitions we're using now are very different from the ones we used just 30 years ago.
Please read the description as it is very detailed regarding the work which was done to create this rifle. Here is a prime example of what we called a 'Full Custom' rifle 30 years ago:
Description
26" tapered round barrel with integral machined-hooded full-band front sight (with
three interchangeable blades), full-band swivel base and quarter rib (with 1
standing and four folding express sights numbered in gold 50, 100, 150, 200,
and 300) all integrally machined from one homogeneous bar of steel by
Reuben Wells. Highly figured Turkish walnut stock by Bob Emmons with
widow's-peaked ebony forend tip, borderless wrap-around ribbon and fleur-
de-lys checkering, double recoil crossbolts, steel pistol grip cap, beaded
cheekpiece, inletted rear swivel stud, and skeleton buttplate---checkered
within. Hand made, left-hand, double squarebridge, magnum Mauser action
by Fred Wells with blind rear action screw, model 70-type safety, hinged
straddle floorplate with release inside triggerguard, jeweled bolt and
follower, 5-panel checkered and gold-inlaid bolt knob. Elaborate scroll
engraving by Claus Willig with embellished gold line borders and scrollwork
on the receiver, scope rings, 12 inch long rear barrel section, quarter rib,
front sight, barrel sling swivel mount, buttstock swivel base, skeletonized
buttplate, bolt handle, floor plate and trigger guard. Gold inlaid bull elk on
floorplate. Gold inlaid bear head on pistol grip cap. The quarter rib inlaid in
gold script Wells & Wells in front of the rear sight and .375 H&H behind.
Leupold VX-3 1.75-6x32mm matte-finish scope with fine duplex reticle on
custom bases. 14 1/8"pull. Weight: 11lbs, 11oz. Huey custom oak &
elephant hide case with brass hardware and leather-trimmed green canvas
overcase, two screw drivers, a brush, three-piece brass cleaning rod, two
brass containers, oiler, an extra pair of scope rings and two keys. Large
custom folding knife with silver frame, 3 3/4" art-damascus blade and ivory
panels by Mike Leach---a few hairlines in the ivory. Nearly new, with 99%+
blue, with only slight handling marks. Featured in Guns Magazine, January
1990; Game Country, March/April 1989; and Rifle, March/April 1988. All 3
publications included, signed by Bob Emmons. Extensive documentation pertaining
to the construction of the rifle. The finest left-hand rifle I have seen. $21,350.
(There is nothing on this rifle except the scope which was not made in a private shop by one of the three makers.)
There are several other photographs of this rifle here:
http://www.hallowellco.com/wells__wells left hand 375.html
Here is the extreme example of a 'Full Custom' rifle again made by Fred Wells:
This was named the CAP Action by Fred because the action covered the top of the stock and was blended into the stock lines as one surface. This is also a takedown rifle in .375 H&H.
This is the top of the CAP Action:
Everything on this rifle was hand made (machine assisted...) in Fred's shop. Action, bolt, safety, trigger, firing pin, springs and all screws. The barrel was made in his shop also, complete with all integral parts, not soldered on, integral. The screws are all hidden so that the lines of the rifle are smooth and continuous. Note the Griffin & Howe interchangeable scope base on the offhand side.