Replacing my MVS 2-slot buttons and joysticks

Anyone have any adivce for me before I attempt to replace my buttons and joysticks? I heard to use Happ parts and that there are available on ebay. Any particular kind? I know they have different ones. Also is there a guide anywhere online that might keep me on track? Thanks.

http://www.therealbobroberts.net/parts.html#buttons

Just get your happ stuff from Bob.

Can also visit hardmvs for info about the cab, etc.

I bought my buttons from tornadoterry on eBay 11 buttons with cherrys
For $23

I have happ sticks and buttons in my cab.
The buttons are fine, but the sticks leave something to be desired...
I plan to get some sanwa sticks and hopefully they will have a better feel than the happs.