Factory amperage draw

[84cutspreme]

I am wondering if anyone happens to know how much amperage some of the stock components draw, really just haven't figured out Compressor, Blower Motor and Wiper Motor.
Head Lights - 5.46 amps
High-Beams - 7.82 amps
Tail Lights - 2.36amps (all lights)
Side Marker Lights - 1.08 amps
Turn Signals - 4.2 amps
A/C compressor - ??
Heater Blower Motor - ??
Rear Defogger - ??
Wiper Motor - ??
Rally Gauge Cluster - 1.73 amps
Reverse Lights - 4.2 amps

I ask because I am trying to calculate amperage draw. I am in the process of upgrading electrical system to support factory stuff along with electric fans and stereo equipment. I have already calculated what I need for the additions, 122.73 amps (750watt amplifier = 58.6 amps, 200watt amplifier = 15.63 amps, Head Unit = 4.5 amps, and dual fan relays = 44 amps). I really just want to figure everything out for knowledge base. So far with everything I know that can be running at once I came up with 151.04 amp draw. (Headlights, High-Beams, Tail Lights, All Exterior Lighting, Interior Lighting excluding dome and floor, all gauges, fans, and stereo equipment)
Any help or input is greatly appreciated

 

[bkb97]

headlights are your biggest draw your cooling fans go on and off but with your stereo add on a 140 amp is alternator is ok think about a 120 to 110 though

 

[84CuttyBuddy]

I'm also trying to improve my electrical and need advice as to what is the resistance range for the fuel level gauge

 

[pontiacgp]

I'm also trying to improve my electrical and need advice as to what is the resistance range for the fuel level gauge

0 is empty, 90 is full