All your criteria - except not cordless:

http://www.axminster.co.uk/product-B...ill-238148.htm

I have the older 2-24DFR model, 9 years old and had a much harder
working life than most diy'ers give their tools - still strong.

I think you'd struggle for 200 quid to get a *good* sds cordless. Even
a really good one (IME) lacks the clout of corded.