My advice is start and continue with lessons.. Buy a single cluib or two to practice with (or bowwow a few clubs from a friend). Once ready to take the plunge - get fitted - several times - by different people. The take more lessons.
If your fitting shows you are standard - then take the plunge. If you are not standard with length / lie - and you can't find a nice used set that fits the bill - hold off..
The right tools will make the job a whole lot easier.
Just my advice.. If the person decides they don't like the game - then it's money saved.. If they like the game - then getting the proper tools make a difference..