The short answer is yes, they will both work.

In my experience, all chains- regardless of manufacturer and original use intended- can be used for road applications as long as they are the correct size for the number of speeds on the cassette.

While the Shimano chains are nice (do they now come with a quick link instead of a driven pin?), the last few years I've been using SRAM 870/970/1070 chains- depending on whether it's a 6-7-8-9-10 speed drivetrain- and found them very durable & available at a competitive price. 2K on a chain is a pretty short life; do you ride in a particularly harsh environment?