PSoC 4 and 5 do not differ much in programming algorithm. So have a look into the schematics of the CY8C49-42xx Prototype board www.cypress.com/ since this can be programmed (I do that frequently) with the 5-pin interface of the MiniProg3.
Schmartboard has a psoc5 board with a 5 pin SWD. Files are on their website.
It would probably be nice if you bought one.
I will take a look at both of those. Something I have been wondering is that since the MiniProg3 5 pin interface does not have a line for the SWV pin, what limiations does this pose? I understand that I can't do things like serial debug printf, but does it limit the normal debugging experince such as break points and stepping through the code?