Yes, it does sound like you have a good plan, that is kinda what I did.
I used a PEN and a crate in my kitchen for the first year. I couldn't have successfully potty trained without the crate. I put the pen up and where the door to the pen was located I placed the crate. On the other side of the Pen i placed a washable potty pad. This is good so they won't rip it up and of course you can save some money this way. When my boy was out of the Pen I kept my eye on him at all times. that way he could never potty in the house. The pen also helps to teach them not to chew on the baseboards.
I also took my boy out on a schedule. After every meal and of course I took him out on other occasions as well. It did take me about a year and a half to fully train my boy. I had to actually use the crate for this to. My boy was really hard to train. Now that he is 4 he is fully trained and he would never think of going inside.

I actually no longer use the crate and he now has full roam of the house. I have such a good little boy!!