I am a redneck Ky boy. But I will tell you what I know about the magnum tow group.My magnum RT did not have the tow pakage on it and I needed one to pull a 5x8 trailer to haul a zero turn mower a short distance.My loads were light and was only hauling short distance so I did not install load leveling shocks and larger radiator.The load leveling shock have a pump on them that pumps them up to keep rear of magnum level if tongue weight is heavy. If trailer is loaded right should not have a problem. My load was 1000 lbs. You can only order the tow pakage from factory on the Magnum RT that has the Hemi engine.You will want to get the Mopar hitch it is the best one.It look good on magnum. You can pull out one pin and remove the tongue ball and you can't tell the magnum has a hitch on it.Go to www.leeparts.com/magnum.html
and you can look at parts list.I could have orderd tow pakage on RT from factory for $355. Now if you order all the parts from dealer parts it would cost you a lots of money. I ordered only the receiver/adapter/ball/and wiring harness and it cost $355. My dealer gave me a discount same price as leeparts. I had him install them also. Hitch one hour labor. Wiring harness 2 hours labor. So parts and labor cost me $600. Hitch part#82207811 for $215, tongue part#82208642 for $33. 2" ball part#82401103 for $18.00. wiring harness part382208926 for $89.00.This is set up that worked for me. Look at leepart for your needs. I hope this info helps you.
Buddy in KY
PS. if you Magnum is not an RT you may need to find out if part will work on your model