Thank you, all very good information.
I didn't know about the portable field forge, i looked up some information on it and i have about 12 tabs open on my browser to take up an afternoon of reading!
I didn't know about that "sweet spot" either, but it makes perfect sense once i think about it. I think this anvil will do me well for a long time, even the knife making i would be doing would be considered medium to light work.
Thank you all for the input, I really appreciate your help.