I'll throw my 2 cents in here.
There is a ton of info and folks willing to give good advice on this site and others. Great videos can be found on the web that can help you through most anything you want to accomplish. I'm 50 and started goofing around with cars not for the fun of it but because I never had the money as a kid, so I learned mostly by doing and asking a ton of questions. Still not afraid to ask when I don't know. I've restored a few cars over the years primarily for fun and know my limitations but I'm not afraid to tackle new and mysterious projects because in the back of my head I always know there are pros out there that can fix the stuff I get wrong.
That being said, as long as you can handle not having your car for the length the job will take, add lots of time for mistakes and added problems, I say go for it. Some advice LABEL EVERYTHING!!! Even if this job doesn't need it, it's a great habit to get into.
One other thing about this problem. If you're having coolant leaking from under the rocker/valve cover, you have more of a problem than you might think. There shouldn't be any coolant under the cover. I'm more inclined to think you have a micro crack in the intake.
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Dave C..........My mantra: I can not be bought!! Long and short term leases available.
In the words of Zora Arkus-Duntov "Is your seat belt fastened? Alright, Let's go"
Yeah, I know, Shut up Dave.