Great, another player has realized that pure smithy+money>pure villages+smithies.
Very well done.
I will just add that there are 10 cards in kingdom and some of them might give some benefit for village+smithy.
1) militia, torturer,ghost ship, goons. Hand size decreasing attacks that you will be eventually be able to play every turn. Rabble.
2) workshop,ironworks,horn of plenty,talisman. - to speed up engine building and not only (horn of plenty)
3) copper smith, bank if you have extra buys.
4) tournament (gives you 8th coin for province and you have engine that allows you to get those prizes), conspirator, peddler.
5) cards like baron, horse traders. Extra buy, you get some good extra use of your estates.
6) remodel, remake, salvager, steward, upgrade,expand,forge,moneylender, mint, trade route,bishop - you benefit from slow trashing, that helps you to improve deck and helps you accelerate VP collecting for final turns.
7) monument, outpost, apothercary, scrying pool, university, alchemist, possession, vineyard, black market, fairgrounds
kings court, throne room.
9) cards that generally give you +buy.