Looking for some new wedges

My 56 and 60 are by far the worse clubs in my bag. For the life of me I can't hit a decent full swing shot with either club. They are old Vokey's. I bought them used and I've probably had them for at least 15 years. The club face and grooves are pretty worn out also the shafts are original to the club. Two years ago I got fitted and bought Callaway Paradym irons. I hit them really well. The shafts are True Temper x100 x-stiff.

When the course is wet I tend to hit them really fat but my normal miss is blading the shite out of the ball and sending it well over the green. My approach wedge is 47 degrees. I hit it around 130 yards. Then there's a large gap to my 56 which I hit 100 yards. I'm thinking of getting a 52 and a 56 and just dropping the 60. Is it crazy to spend the money for a fitting for just wedges? For my wedges I've never paid attention to loft angle, bounce, grind, etc but I want to improve my game from 120 or so and in. Maybe a fitting would help.