Don't even consider a 10a. Only thing you'd put one in these days is a restored, original condition R100, 10a RX3 or 110s.
...and even then it would cost you a overrated to build.
Darren - CC = Ml.
1000cc = 1lt, which is 1000ml. :P
Does it have to be the production listed weight, or actual weight?
Could always boolt some blocks of lead under the car!!! :)