depends if your going to do it yourself probly cut the price in half. as for a number i wouldnt know but im guess1-2k for a kit all depends on what you want out of it...and i wouldnt say it's easy considering youd have to do alot of custom cutting and what not like notching the frame and such
if you know what your doing then it will be somewhat easy. if you have no idea then it will probably be on the hard side. your probably going to look around the 2K mark for a price depending how cheap you can get stuff. plus alot of custom work. bagging a ranger aint like bagging a s10 where you can basically buy the frame with everything on it.
if your looking for something low and still looks good. go with a DJM 4/5 drop that will set you low to the ground and wont have to worry about all the air lines and tanks and such.
yea get a static drop for now, unless your a hardcore fabricator and can do massive step notches and bed cutting, not to mention moving **** around in the engine if you want to lay frame with those 20's