Thanks for all of the replies and tips!
Well, being as impatient as I am, I got tired of waiting on my dad (I didn't even know where his tool kit was and he was at the VA most of the day), so I just decided to pass on replacing the caps/rotors for now and put it all back together. I started the car and it is purring like a kitten again. My main issue was the non-starting problem, so I am hoping that the replacement EZL that Trevor (tlampre) sent me takes care of the hot non-starting issue. I let the car run today until it got to full operating temperature (up to 80°c on the gauge) and it restarted everytime, but I know the the engine actually gets hotter after it is driven. It was getting too close to dark for me to venture off in it incase it did conk out.
I was going to go ahead and replace those caps and rotors because when I started the car the other day even after the replacement EZL, the car was kinda missing and sputtering, but it could have been where it has been setting and not driven much at all over the past several months. When I started it this evening, it did that initially, but it cleared out and was running very quietly and smoothly and did for the 20 minutes I let it set there and run.
Funny thing about those bolts... the ones on my caps are actually "hex" heads, as well as the ones on the caps. One of the hex bits I had worked perfectly in the cap bolts, but on the rotor button, the one I used was too small, which is why it stripped out I think, but the next size up was too big. Like you said, it probably will take me getting that $65 set and I guess something I need to keep in mind in the future for when I really need to change these out. For now though, I think my caps/rotors are ok, but I am keeping these extras for future use. I tried using a torx bit kit on the rotor button bolts and none of them would even come close to working. I guess sometimes these old W140s need special tools that this old fella don't own. lol.
Thanks again for all of the help and to tlampre for the parts!! I will get this car back on the road yet!!
Interesting, I see no reason for them being AUS specific so they were probably after market. They were in excellent condition from a '93 400SEL, too good to have been original. The caps were torx as well. The rotor screws were made from a fairly hard metal and I had to buy a bigger set of torx sockets to remove them without damage due to the unusual size.
I have given these to 86560sel to replace his worn ones.
86560sel, you will need to be sure you have the right size torx wrench if you decide to use the caps and rotors I sent you. You should replace them as a pair as MB changed the design, the caps I gave you may not be compatible with the existing rotors. This is especially true if they are aftermarket.