Cool, thanks for the ideas. It is a small rack as well, so I didn't know if smoking was a good option or not, but I've been wanting to give a go at smoking some lamb for a while.
I've done small lamb chops over the firebox but never a rack. Main thing was that I wanted to get a little smoke flavor into it at least.
Maybe I'll try a quick sear over the fire and a bit of time in the smoke indirectly, similar to a pan sear and oven roast ...