In my opinion three 32in sticks will get your the same height as four 20in sticks...From ground to first stick is about 2ft for me and then 18inch or so between each stick.....Many guys like the setup you mentioned above
The mobile stick an stand setup is just about the most versatile setup you can have..That being said,I sold mine because I did not have the free time to practice to be as proficient with it as I would like.....My buddy was looking for a budget and somewhat weight friendly mobile setup..We found him a Muddy outfitter lite stand for 80$ at BPS(15lbs stand) and a 4 pack of the New big game Platinum pro-x sticks for 100$ which is a 4 pack of 21in sticks that weigh 3lb each.....Now that is a 27lb rig,but 200$ or under is tough to beat imo....Another stick option is the 32in/3 pack of leveage sticks for 80-100$ which would be like 22-23lb......Either setup is 13-14ft imo..This is the cheapest semi-light option I have found