Welcome to the forum AloraDanin.
Do not have year or model you are looking at but do have the chassis which rides like a dream and the power of 8.1 and Allison couldn't ask for more.
If you look at the weight tables of model your looking at says its a 24000 chassis not 22,000 which would have a heavier braking system and would not need the brake recall that the 22,000 chassis has.
You need to look at the silver sticker on wall next to drivers seat which will tell you this weight information.
I have done some mods to mine that you may not find necessary and there maybe some on the coach your looking at already.
Here is a
brochure of KS and a
Owners Guide for info on weight limits, tank sizes and other questions you may have.
The gas coach will have less maintenance problems which you maybe able to do yourself.
You can look in
Quick Tips and see some of the mods I have done.