Thank you 
Do you recommend a particular brand or should I just Google it?
It depends on what you really want.
If you have to have a rotating 49-way, the Happ style is the only one available at the moment.
I personally don't care for them because they feel too floppy to me.
The Williams style has more resistance to it, but possibly a little TOO much at the extremes of travel.
I prefer the overall feel of them to the Happ ones, but they are a little harder to control subtly.
As far as the encoder goes, Groovy Game Gear is the only game in town on that.
DaveB has a 49-way encoder, which works great for 49-way and most analog games.
It doesn't do the digital restriction that the GGG one does though.