head replacement advice
 

So my valve saels are leaking and I wanted to beef up my motor a bit. I am considering getting a reman. performance head form sunwest automotive engines. I've got a pacesetter long tube header in the garage to run on it. They qant $418 for the head with about $40 shipping. Here's the specs:

HP22RE-3 $418.00
STOCK HEAD WITH 282 HP CAM AND RV1289-1 SPRINGS

CAM 282 HP

DUR.050 LIFT SEP LASH SPRINGS

1800-5000 226 INT .433 110 .006 RV1289-1

MID/UPPER 226 EXH .433 110 .008 RV
1289-1

My 22re is pretty healthy at 170,000 miles so I thought it would be a good idea. I building on a budget here though keep in mind. I just wanted to opinion, direction, alternate choices, etc. Thanks.