Re: which one to run
A 2 smoke BGF type kit is the BEST way to get in.
You will have plenty of opportunity to participate in discussion, here at motorbicyclingDOTcom, cost is low, and they are truly universal.
The 49 and 99 4 smokes are known to be more powerful, reliable, expensive, and difficult to get operational, overall.
They are superior.
My vote is for a chinagirl... she's a cheap date!
and will give you plenty of opportunity to decide how far you wish to go with this.
My goal is cheap, reliable, personal transport, below the tax collector radar. Fun counts for a lot!