Yeah good call on that stick, it looks good. I bought the SFAC stick for just under 100 bucks on e-bay, and after 6 months and more serious gameplay I'm already eager to replace it.
If the buttons and stick are shot or just suck, just replace them with Happ parts.
http://arcadestickmonk.com/SFACmod.htmlSolderless mod tutorial.
The finished product is pretty much the same as a MAS stick.
And HRAPs are great. I have an HRAP2. It was great stock, but after I modded it with Seimitsu parts, it's perfect.