Hello! Good choice of cars to own...a Frazer is a fine road car! The best thing you can do is to grab a pencil and paper and make yourself a list of things that you want to do to the car. Then, armed with that, start checking out the KFOCI monthly bulletin for your needs.
Interiors in KF automobiles can be tough to reproduce, but material that's real close to the original can be had. I found that a Ford material sold by LeBaron Bonney, for example, was a spot on match to the material in my 48K.
As for some hands on, probably the best thing to do is to go thru the brakes and make sure they're right. Parts to rebuild or replace brake items are easy to locate and not too pricey so it's well worth the reasonable investment. Then, make sure the engine's had a good tuneup. New plugs, points, cap and rotor will make a world of difference. The carb also might need a rebuild after sitting for a while.
Once you're thru that much, it's time to enjoy the car. A blanket over seat will do until you can spring for a new interior.
Good luck!!