Beragon, if you want a silver standard, don’t adjust any of the prices – just change the treasures to always give coins of one level cheaper, but ten times as many in volume.
- All the prices are already accurate to a standard of 1 silver penny (British) = 1 silver piece. It works out that 1 Pound is worth about 24gp. Converting them to a yet lower silver standard would actually make silver more valuable in ACKS than it was in the real world.
- The weight of coins in ACKS is 1/10th the weight of coins in B/X D&D and AD&D. So, if you took a 100gp hoard in B/X, it would weigh 10lb. In ACKS, a 1,000sp hoard weighs 10lb. 1,000sp = 100gp.
So all you have to do to have a “silver standard” is just have the treasure be mostly copper and silver. The rest takes care of itself.