Help diagnosing Subaru

[ispoonwithmugen]

Well tests came back bad. Two valves are leaking pretty bad. This guy builds Drag/Race motors and still isn't convinced it's the HG either. He says his bet is on a sensor or loose connection. So now we need to pony up a grand total of $700 or so to get this stupid thing running...I'm trying to save some $ here and buy a kit for him to reseal the valves. Does this look like it has everything? Should I even care about the STI HG if we're about to sell this thing? I can't find shit in there description.
<!-- m --><a class="postlink" href="https://www.amazon.com/Fel-Pro-Hs26170Pt1-Head-Gasket-Set/dp/B000C2AISU">https://www.amazon.com/Fel-Pro-Hs26170P ... B000C2AISU</a><!-- m -->
or should I buy these
<!-- m --><a class="postlink" href="http://www.partsgeek.com/gbproducts/MC/345-07024165.html?utm_content=MC&utm_term=1998-2012+Subaru+Forester+Valve+Stem+Seal+Kit+Felpro+98-12+Subaru+Valve+Stem+Seal+Kit+2008+2007&utm_source=google&utm_medium=ff&utm_campaign=PartsGeek+Google+Base&gclid=Cj0KCQjw557NBRC9ARIsAHJvVVOQ6x1Qk0oZhi9zmCWnKDvxDGSwAnpXxRxw4ESLVvrXapTXRvMHlAkaAmEFEALw_wcB&ad=47433970452">http://www.partsgeek.com/gbproducts/MC/ ... 7433970452</a><!-- m -->
and get the other kit plus an STI HG?

It sucks because she is wayyyyy past her budget here and doesn't have much to go on. All of this time, effort and money and it's probably still not going to run right.
/rant