GR8AV8R
That's a smart move. Actually, I had my own CV and cover letter professionally done for me. In fact, it was done by a captain who works in recruitment. It was pretty sharp, especially the CV. Gets noticed a lot. Best move I made was getting a pro to do it! Makes you want to read it.
Anyway, you obviously recognise the importance of getting an application done properly. With your level of experience and perseverence you will undoubtedly secure employment sooner or later.
Just keep doing what you're doing. It will come.