Should I do my own headgasket?

[Oldmactech]

2003 X5 3.0 has a blown headgasket. Very good condition car with only 94k miles.
Also has an engine knock that is probably related but a mechanic I trust says it’s not a big deal since it doesn’t get louder under acceleration.
Getting quotes 3-4000 for gasket,head work or replacement engine.

I’ve got some DIY experience doing Brakes, Waterpumps etc but never done a head gasket. Been watching lots of YouTube’s and my biggest concern is stripped bolts, warped or cracked head and getting the engine retimed so it does come apart on first startup. That and the sheer weight of the head-I’m an old guy.

I guess I’m asking for a “should I” conversation. I have tools except for a good torque wrench and some space and time.

Should I?