[s-cars] Thermostat replacement question

[Dave Forgie]

I went out to the garage to change the thermostat and relized two
things:

1.  I see a flat paper gasket sticking out the housing.  I have a new
O-ring but no flat paper gasket.  What are the chances of re-using that
gasket?  (Its Sunday)

2.  Probably more important, I am not sure how to get the upper (front)
bolt out.  I can see it but the PS pump is kind of in the way (and I
would rather not have to move the PS pump if I can help it).  I would
presume that some kind of universal joint and an extension could work.
Any hints?  (The lower, rear, bolt seems to be a straight, albeit long,
shot.

Thanks in advance.

In the meantime, I'll clean out the garden shed.  :>(

Dave F.