I forgot to mention, most solicitor offices have flat rate fees on things such as this. I think I only paid around 200 or so from the solicitors office I use. They are very high priced in every other area and I have used them many times before and after and never lost a single case, so that said I am not sure if the quality of a solicitor matters of not because mine was so cheap.
These things are very important though for you and whom ever you leave behind. The living will is just as important if not more. I have found that when a physician knows you have a legal directive they take your case more serious instead of looking at you like some potential donor.
The low cost of these can mean the world. I have been unfortunate enough to experience the power of a living will. Had a bad day many years back, the hospital figured it would be a good idea to play games and make a choice over a three day time period whilst having my living will on file and having been given direct legal guidance as to what should happen. Three days later I was told I had been transported to another hospital and was treated for my injuries plus the injuries that occurred due to the game playing of the first hospital. Not that I remember much of the issue.
Had that first hospital followed directions I would have recovered in fully in six months, since they did not it took me 18 months to recover, I was medically retired from the Army and won a legal suit (settled out of court) of €14.7 million Euro. The senior doctors of the five departments who played games lost their licenses to practice.
Point is, that directive when followed per your pre-decided choice is hat you felt was in your best interest. Most folks do not plan to have a bad day, they just happen and only you should be able to make that choice when your life is on the line. It may feel like a wast of time and a waste of money, and I hope for you it is a waste of time and money. But if that day comes and you have nothing then you just complicated matters.
No matter how good you think you are, how fast, how educated.... It does not matter, bad days happen to the best of us. They call them hero's and salute them with the respect the deserve just before they had your heir a folded flag.
Best of luck, get them sorted and I hope you never need them.