I don't deny that pure Rebuild mirrors can be tedious luckfests, but I'm far from convinced that that's what you always get when Rebuild is on the board.
Rebuild is fast, but doesn't end the game with all that many points, and struggles if the opponent can get a few Provinces the honest way. Fool's Gold is good at buying Provinces, but lacks staying power in long games. With the excellent Fool's Gold enabler, Salvager, this seems like too good an opportunity to miss.
(If you also think that FG/Salvager usually degenerates into a tedious luckfest I don't know what to say, except possibly that two wrongs might make a right?)
I like your opening of Salvager/Fool's Gold. But on turn 5, it looks like you change your plan. I think you should see it through and buy a Junk Dealer in stead of Rebuild.
After that, probably second junk dealer into laboratories and at some point a market. (no early province)
You don't need more then 5-6 Fool's Golds here, but I think you could get to playing them all every turn.
Maybe you can add Haggler but that depends on your draws, and mainly on the question what kind of rebuild your opponent is playing by then.
(remodel many duchies into many provinces, or trash province-for-province to end it asap)
Fool's gold has a huge profit-for-cost ratio, so if you play it in an engine you can afford to (=should) trash down heavily at the start.
Quite similar to Market Square in an engine.