I'm seriously thinking about purchasing a '94 E320, and considering I'm a DIY'er, I was curious as to the differences/difficulties between wrenching a 104 v a 103. I know the ignition system is more advanced, and the fuel injection is different, not to mention less space to work in the engine bay. (all of that plastic is intimidating

)
For example, I've done a head gasket job on my '91 300E, and if this '94 needs one done in the future, I'm wondering if I could tackle that myself (car has 107k on it) using my current knowledge. I know there would be some differences, but would they be drastic?
Any insight appreciated! TIA