Hi, Glenn.
Seems like you don't have access to the workshop manual???
If so, you can find it in the NSX Wiki at the top banner of this page and the manual is located under the 'Repairing Your NSX' section.
The zipped version is not complete but very useful as 100s of pages are linked each other.
You may want downloading both zipped version (ver.91-96 and ver.97-05) regardless of your year model.
For the front beam, you've already tried and decided that it's something you are not comfortable with the tools you have so good decision in letting someone to do it for you.
Next time, with the information on the workshop manual, you may be able to set your limit higher than this time.
There is always a first time so please give it a go as long as it's safe to do so.
The compressor removal process is in the HVAC chapter. Front beam removal is covered in several places but it is probably best if you read through the Engine Removal/Installation procedures.
For the CD changer, you can find basic info in the 'CD Changer Removal' section under 'Body Electrical' chapter in the ver.97-05, page 23-32.
I have the English version of installation manual but don't want causing copyright issue on here so just sent you PM.
Kaz