Mike, there are many things in your posts that you have simplified or mis-stated. That is why the lighting pros on here are suggesting you may be in over your head on this. Personally, given the information presented, I have to agree with them. You last comment re: insurance suggests to me that you may want to have a good long chat directly with your underwriter before you proceed in doing work that you are not properly covered for. It may not be rocket science, but there is a lot more to this work than most acknowledge or comprehend. Building teams of complimentary trades is the mark of a true pro and doing so will help to propel your business in the eyes of your clients. Nobody is capable of doing everything at a top level.