Is it possible to make isometric game of 200 * 200 tiles per map in Unity ?

We made an isometric game in AndEngine. Now we want to convert this game into Unity. I am searching for tiles map support/plugin in Unity. I come across a plugin called Map and nav http://forum.unity3d.com/threads/138355-Tile-Based-Map-amp-Nav . but the problem is it only support 50*50 tiles per map. My map is 200 * 200 tiles. I want to know is there any plugin or way to acheive 200 * 200 tiles per map in Unity ?

Thanks