My suggestion to you would be to order C.S.Osborne diamond point awl from Tandy. This awl is a one piece deal and the blade is fixed, so no need to choose hafts/blades combos. Cost: $17.99 USD for the whole thing. It's cheap enough, simple to choose which haft and blade , needs a bit of a tune up, but will work well for quite some time if treated properly. I bought one 2 years ago, and it still works fine for me, and I've used the heck out of it.
Once it's sharp enough, a good stropping once in a while, and a small cake of beeswax to stick the tip of the blade into between stitches, and you're good to go.
Hope this helps you some.