Gotta have an airfilter/screen on any carb you run. That tank is not an add-on. They had em in Panthers on after 2003 models,I believe. The tanks looked huge, but I was told they weren't so big in actual volume. They were single speed bikes.
Electrical was substandard on those(wiring,switches). I hope you can get it working.
They ride great if they ride like the older ones.