Well in that case the SRD kits might be a good starting point. I personally don't have any experience of their products/ service but they are highly regarded and i dont think anyone has has a bad experience dealing with them that i have read about.
The beauty of their strops is that the surfaces are replaceable so if you damage it or want to try something different it will cost about the same as a cheap strop.
The Ralf Aust razors seem to be the most recommended and as for soaps, brushes etc you will have to decide.
Have a chat with the guys there about what you are looking for and the best value upgrades i am sure they will be glad to assist