I finally got the Chambers lancaster build done. Major thank you's for this forum's excellent input, those that personally answered questions when bothered, and Jim Chambers and crew for producing a first class product in all respects and providing customer service that is beyond.
The Hawg profile: .50 caliber Rice barrel, swamped. Lancaster profile, silver and brass inlay, handmade sights, captured keys, relief carved. I am in the process of sighting her in, right now she is centered fine but three inches low at 50 measured yards. .495 RB, .020 spit patch, 60gr Goex FFFg. A little more filing on the front sight and she should be there - shooting beautiful groups so far. Only the sideplate is engraved, and not all that well, I will engrave more when I learn something more about the craft.
Finish: Ferric Nitrate crystals mixed 3:1 with alcohol, allowed to dry overnight and hit with a heat gun the next morning (I could have gone deeper/longer with the heat gun). One coat of LMF Maple (didn't seem to add anything) and finished with 6 coats of Chambers Oil.