MacBook Pro Fan Screw Replacement
If you end up with option 3. Screw extractors, then your 'cheap choice' to put it back together is just make a saw cut in the top of the screw [remains] &amp; treat it as a standard flat-blade screw-head from then on in.

I presume you have one of those, but didn't procure the necessary Torx before starting out ;-)

Don't try saw-cutting it first... you really don't want metal filings in your puter.
That also precludes trying to drill the screw-head off.

Try 1 &amp; 2 first, you might get lucky.