Since you have seen the horrors of pre-inletted and shaped stocks, I'd go with a plank.
Bandsaw the pattern profile onto it, drill RR hole (I haven't solo'd this yet, but plan to next time.) I have a copy of the pattern now. Have set up 3 (2 are "on hold") with the help of John Anderson-maker of 180-or so and a fine offline gentleman.
Do all your layout planning on that fat square slab (you may have to "re-square" it somewhat), but know your "reference edge" and be true to it. Let in bbl. This determines location of touchhole-and thus pan. Let in lock, this determines location of triggers. Let in triggers and then buttplate and all the other hardware. Then pare back the great slab to reveal the wonderful stock hiding beneath it all. Carve/engrave and finish. Easy Peasy!
I think that bbl will fit a number of styles. I'm stuck on the TN sort until I get froggy and jump on something else. Have great plans for a few more of the TN's for sure. Beware that unadorned does not mean "easy". With that said, I'd use maple or walnut, double set, English lock (like the Chambers Late Ketland) and "iron" crescent buttplate and Bean-ish guard. For best TN-styling I'd extend the tang into the wrist and whittle it down nice and skinny.