In case you've not made your purchase yet OP, or for anyone else wanting to know what's a good, reasonably priced chip for 1151, there''s news coming out now about the Aug launch of Coffee Lake 6 core chips, and it's looking very good.
The surprising details are low prices, Z100 and Z200 series backward compatibility, and very high turbo speeds. We're literally talking chips that turbo only 100-200MHz less than the 7700k and 7600k, but on ALL 6 cores!
i5-8600k, expected price of $250, 6 cores, 3.5GHz base clock, 4.1GHz turbo (on 6 cores).
Source: http://wccftech.com/intel-coffee-lake-core-i7-8700k-core-i5-8600k-6-core-cpu-leak/
I'm no doubt going to buy the i7-8700k, which has a 3.7 base clock and turbos to 4.3GHz on 6 cores.