Also don't forget Santa Rana's hat wich you could farm from Santa Rana's instance inside El Toro's mansion, this hat doesn't have any stat, "only" overwatch talent, but this talent worths way more than some stat or some single use active power :) , with a lvl 45 rifle you could do around 160-180 damage with a normal shot, no stat boost can reach this damage, and if you consider that it could proc more times it could easily do more damage than an active, also if you need to move and some enemy follows you, you would not waste a turn for movement since you would have a free hit, could be used strategically! I use it on my lvl 50 musketeer ^^.
I've been trying to farm Billy English for a while now, but all he gives me is gold. Am I just being unlucky?
Yep, consider that for to have him guns i needed like a hundred of attempts (got all of him gear meantime and twice the outfit plus some other nice gear for other classes), anytime beside of santa rana's hat i would not spend too much time in famrin Billy, yes the guns are nice but at lvl 50 with a single hit of your rifle you could do the same damage of guns plus a burst fire, the outfit could be very ncie to have in backpack in case you face a lot of gunners (easy in Cool ranch, rarely in Moshuu, will see in Marleybone), means that with leveling you would need better gear in any case, so is up to you if to continue or not, i farmed him at lvl 50 for to go faster, also consider with next patch drop chances will be probably raised :).