Also, you only need of regular totals of the wallets to be transferred off-chain to make any amount you wish to exchanged: eg- you can have .... 0.001, 0.002, 0.005 0.1, 0.2 0.5, 1, 2, 5, 10, 20, 50, 100BTC,.... totals in the wallets and you exchange the key-pairs of the required numbers of wallets to make up the any amount you wish (ie: similar to how regular denomination coins/notes work in real like currency)
So you want to establish denominations again? In a digital currency where we finally have a chance to get rid of this absurd kludge? Why? Why add all that completely unneccessary complexity just to get out of a miniscule tax dedicated to keeping the system running?