i think 4" will still be a managable truck. most newer rigs are much taller than that stock.
I have snow plow envy. i found a 'Mog on CL the other day and had to stop myself. i would LOVE a 404.
i worked on this bad boy several years ago. it was getting outfitted with a big 'blower and we put the bank vault worth of HID's on it for the customer. what a riot that thing was.