Bulb Replacement/ and other questions.
 

I have a coulple of questions, I've tried using the seach engine in the site but it's working differently from what i thought it would have... Here is my questions...

1. I have my angel eyes that I got yesterday and I putting them on this weekend :redspotda , and I want to upgrade the blinkers bulbs and the osram site says 5007(s) or 7528(s), has anyone used 1157(s)?

2. Sometimes when I remote start my car my parking lights come on, and I have noticed that the driver's side sometimes it does not come on, but it'll work while I'm driving, or sometimes while I'm driveing I'll put on my left blinker and it'll stay on and won't blink, has anyone experienced that with their E36?

and lastly...

3. What is the difficulty level of removing the headlights and blinkers on a scale of 1-5 5 being a PITA!?

Thanks guys in advanced for your help.