Not sure you would need a uprated clutch with the weight of your Elise, it being around half the weight.
Also if your charge cooled then, Revo 2+ software with SPS switch would be my preferred engine map.
Also inspect the cam follower regularly, they are mostly fine on UK engines but there is a few instances of them failing with big bills. And for the price of a replacement it's cheap to replace.
Catch can maybe.
and you will need a LSD diff for sure
Also keep your eye on the oil level, a fair number of these engines drink more than George Best.
Apart from that the German over engineering means they are pretty much bullet proof.
I cant imagine how ridiculously fast this car will be a 2+ Edition 30 is very fast already never mind losing half it's weight.