still scratchin my head and tearing pc analog joysticks apart trying to find a solution.
how ever I may have found a simple and cheap solution but it is kind of goofy and would not take much rough abuse but I am going to try to work with it for something till I can figure out something better.
I have not tried this yet but going to take one of these psp analog's

they have 4 nice solder points on the bottom of the assembly's pcb and I would attach 4 wire's to each of the wires with terminal quik disconnect's and then desolder the stock dreamcast analog assembly off the pcb "hard way" or just solder to the bottom of the analogs legs under the DC pcb "easy way" and the install some wire's to the now exposed points and add some quik disconnects to them I still need to get one in first to figure out how to install it in a mdf cotrol panel and add a mini joystick to it like one small enough for a thumb and index finger but it should work but like I said kinda small goofy and breakable if it took a hard hit but it may work for less then $20.00 and a hours work if that.
I am still trying to figure out something better though.