OK, so here I am. Maybe not very young, but still the type of person you are talking about. I have owned a few Supras, so I am not buying this car because it is now cheap enough.
I don't have much mechanical experience, save doing brake jobs and the like. I did car audio for awhile, so I guess I might be a little better than some with tracking down wiring problems etc.
But pretty much, I don't have experience. My car is now sitting in my garage apart. I used the TSRM, and tried to label as many things as possible, but I'm sure when it's time to put it back together there will be some hiccups.
I was lucky enough to find someone in my area with some experience to help me out when I was stuck.
BUT, I was planning on paying somebody to do this. Didn't have any problem $$ wise to do so. I was somewhat encouraged by comments from older members on this site, that doing the HG was a piece of cake, even for a novice. So I dove in.
Well, it's really NOT that easy if you are doing it for the first time. There are many things that pop up. Since the car is still apart, I really wish I would have just paid someone to do this, BUT I KNOW that when I get it back together, I will be happy I spent the time learning how to do this.
Heck, just taking it apart, I would see something in the TSRM that said something simple like remove the #3 hose from the kanuten valve. Well, where is that?!? So, I would stop everything, figure out what the kanuten valve was, then figure out what the hose was for, etc. etc.
Everybody has to start somewhere.