my suggestion would be to contact some track makers and see what they recommend,
based on the picture you posted, it looks to me like you might have clearance issues with tracks on your machine, as there seems to be very little room between boom arms and rear tires on fender/frame
unless you maybe went to smaller tires? which would be an added costs, and may effect issues with drive train, as smaller tires will; act like a gear reduction, changing travel speeds and way torque is applied, which with added traction from tracks might damage drive train
so you again might want to contact track makers and see what they suggest
from there, track design would be based on the surface your using it on most!
and a FYI
tracks don't typically work well in snow or ice, unless you stud them or add chains, as most tracks are designed for dirt work and are made of a harder rubber for longer life and more durability
any track made for snow, will be softer rubber, more edges, and well, won't last as long or be as durable if using in dirt work
just food for thought for you!