OK, I'll kick off a starter price for discussion. Brand Value level five (BV5) for a Continental no-name gun. Original Quality grade six (OQ6) for a "fair to middlin'" BLE. Current Condition level three (CC3) for "significent use." BV5-OQ6-CC3 = $580 for a 12 bore SXS shotgun of "usual" configuration at USA retail. Give it 2X for 20 bore and you have $1160 for openers. Too little? Too much? Comparables?