Check out the floating version of the
gold foil pickup from Jason Lollar. I put one on my 1953 L4 and it sounds pretty good in a country blues kind of way. It's a single coil pickup so it's got more bite than a floating humbucker.
My gold foil pickup is attached to the pick guard which is not the original guard. If you have the original pick guard you might want to get a replacement to use for the pickup mount and keep your original pick guard unmodified. I used a
Schatten volume and tone control that you can find here.
The nice thing about a floating pickup is you don't have to drill any holes in the guitar itself except for your end pin jack, if you want one.