What constitutes the Peddler engine?
Masq, Worker's Village, Smithy, Quarry, Market, Peddler
EDIT: Also, I'd argue that Jack/Counterfeit is better than Jack/Bonfire.
Not even close. People need to play more Jack Bonfire since it seems so few believe it. Add Borrow if you really want some fun.
On Counting House/Travelling Fair: this is a lot better than the previous one in that it topdecks Copper, but it should do so more responsibly. If I recall correctly you have a piece of code somewhere that checks cards remaining in deck - so it would only topdeck Copper if there are less than 5 cards left in the deck - that way it could also buy Counting House first.
wachsmuth and I have a few bots that you may want - I will send them to you privately sometime in the next few days.