Am I out of line??

[DOOM]

I'm about to pull the trigger on my engine for the Camaro. It's going to be a $40,000,00 +++++++ deal. I have been talking to my lawyer who is my neighbor and friend for 15 years and had him write me up a contract. Basically stating I will get what I paid for in a timely manner. I have passed up on two builders who have been evasive on completion time not answering the question, ''How long will it take to get my engine''. I completely understand these things take time don't get me wrong. But after my AP ordeal I'm not going to play the I said we said BS!! I want it to be very clear in writing what is expected from both parties. I also want to put the money in some type of account showing the money is there and I can release it as needed. My lawyer said that can be done with no problem. Do you guys think this is to extreme??? Am I out of line?? I keep reading all the horror stories about guys getting taken for thousands of dollars. Its hard to trust anyone when it comes to this ''hobby'' anymore I don't care who it is. I would like to here what you guys think..