Chests in Shiverpeaks are numerous and easy to sprint to if you are a warrior - all points to strength for extra sprinting time. Quickest run is from Port Sledge, you can sprint to 2 chests in under 2 minutes on a good spawn, then die...like the sorry chest farmer you have become

...and viola! you will res near Droks and should be able to find another chest close by.
I tried this with about 40 keys....yes I am rich and yes I was very bored. Around 1 in 10 will drop a gold sword/axe...the rest drop gold or purple staffs and off-handers that even the merhants frown upon.
Chests are like gambling...you either lose your money straight away or you lose it the next time you gamble.