Nope it's only one wing of SM we can enter I forget exactly which
Well you can do gnomeregan/SM but what's the point since all stuff is over level? Although if I remember right for F2P hunters in gnomeregan you can find scope that is best F2P scope. And of course, do mobs drop silk? Then it's worth something.
And how would a loyal alliance toon make his way to the scarlet monastery???
Guessing you don't have any FP's so I would say from Dun Modr, Wetlands, run through Arathi Highlands (follow road and you should be fine) to Hillsbrad. Then run through Hillsbrad and swim across the lake into Tirisfal and SM is in the North East corner of Tirisfal.
run through Arathi Highlands (follow road and you should be fine) to Hillsbrad.
There's a horde outpost on the border of Arathi Highlands and Hillsbrad Foothills, the 2 horde gaurds were ?? to me but only had about 1.8k HP each and I was easily able to solo them