It's easy, but there are a couple of things I'd recommend.
When you route the fuel line and filter, try to keep the filter somewhat verticle. (Top in, bottom out)
That will help to prevent air from getting trapped in the filter, breaking the siphon and stalling the bike when the fuel gets low in the tank.
Some have vented the gas cap (I did), others have removed the roll over valve from the tank vent line. Do at least one.
I love it and as a plus, I haven't had any carb
I hear the Yamaha grizzley valve is cheaper than the suzuki and lets even more fuel in.
Have fun and enjoy the look of those twins being exposed to the world.