You're right on the money with an anchor roller mount!
It's the best way to store, deploy and retrieve your anchor!
Can't disagree with the choice of a Bruce or plow style pick either. It's a very effective design for the predominant sand, mud, mixed rocky substrates we encounter in these parts.
Usually 1/2 to 3/4 your boat length in 3/8" galvanized proof coil chain will get the job done and if you're anchoring for 'butts, 400' of 3/8" nylon rope is not too much.
Head to Harbor Marine in Everett and they will also hook you up with a wire hoop reinforced "Rode bag" (very sturdy nylon mesh anchor rope & chain bag) that will keep your set up neat and tidy until you're ready to.... weigh anchor!