This car has been KICKING me while I'm down for about a month, now.  It died one day, had a short circuit that almost burned it down the next...over the weekend while diagnosing a ticking noise that turned out to be loose exhaust manifolds I find what's shown in the photo below.  I've had the car about a year and it's been great....now all this foolishness...

So, while it IS probably the "best" kind of head gasket leak, I'm not crazy about it.  Is there a step by step video or photo guide that shows the process?  Would you even attempt any of those sealers in a can?  I haven't had the "opportunity" to fix a head gasket since I owned a set of wrenches.  

For some reason, photos posted in this forum typically appear superimposed over part of the text., so I always miss some info as a result. Still waiting for a way to fix the issue (?).
Anyway, I don’t see where the O.P. has revealed the type of head gasket, or whether the coolant leak has invaded the combustion chamber (spark plug evidence?).  
My original motor with steel gaskets became overheated & started leaking around one cylinder (weeping head/frosted plug) years ago.  I then switched to 70% propylene coolant & zero pressure radiator cap, and the leaking stopped, so I never bothered with re-torqing.

6 VOLTS/POS. GRD. NW INDIANA