Hi,
Corvera town is very Spanish - a large part of its appeal.
There are all the services you could need, bars, restaurants, chemist, banks, doctors, supermarkets. The supermarkets in town are well stocked and have pretty much everything you for day to day needs. As you say there is a hardware store which again is well stocked. There is a local market on Sunday with various stalls, don't forget to try the roast chicken shop for your 'takeaway' Sunday lunch.
There is a Mercadona supermarket in Fuente Alamo. Murcia has a very large Al Campo supermarket in the same complex as IKEA
Hope this helps?