How hard is it to change motor mounts in Mazda 3 2004

One person can do this job, jack up front on Mazda, remove the under side splash shield, support the engine with pc of wooden board on top of jack, change only one mount at a time, drivers side top trans mound requires a little digging to get to, pass side top mount less digging to get to, underside mount is the easiest one bottom of body at the firewall. All metric sockets and extentions needed. Couple screwdrivers and some time.