Amazon sell them at reasonable price. A standard Merkur ( I think ) is a 34C.
I got mine for Xmas so can't say too much, although I do know I got a nice new badger brush and stand for the razor and brush. I also was given some official nice soap which is very good and gives a great lather. The stand and brush is quite essential as you don't just want it lying around on the side.
The blades, as discussed in another thread, can be £10 for 100 blades. With that in mind, the initial outlay of a decent razor, brush and blades easily becomes economically viable.
Closest shave I've ever had and I could replace the blade once a week (no way near needed that much) and still have a new blade once a week for 2 years.