I like that attitude that you want to get it running.
I bought my first defective xbox a bit more than a year ago, just to take a look at the electronics. It had 2 broken pcb tracks, a totally messed up LPC header that had badly sodered steel nails in it's holes, glued together with super glue on the back of the PCB. As a bonus, the harddisk was unlocked.
So, I got from a Frag to just again a Frag (only one track repaired) to orange green flashing (time to buy an AV pack and a controller) to error 5...
At that time, my modchip came in. In it's setup screen, it only worked with an original xbox controller.. So, useless at that moment.
Finally build the eeprom reader to discover that the case serial didn't match the mobo's one, and that the eeprom.bin on the harddisk also belonged to another xbox.
Guess I have learned it the hard way... If the result comes out, it is worth the efford.
Btw, 41 isn't old. Maybe you learn slower, but you have a whole background of valubale information stored in your gray Mass... You are just as old as you feel you are..
As with most of these things, there are many ways to do it wrong, only a couple that will work.
Btw, I learned my Dutch when I was 2. Finished learning it at 23.
regards.