The lift is different then picture, and it shows it has extras such as a ball hitch but there is nothing to add the ball hitch in any extra...definitely need to fix this
If it's tipping over for you mess with these in the handling meta.. These numbers work for me but just tweak until it works for you
<fRollCentreHeightFront value="0.400000" />
<fRollCentreHeightRear value="0.500000" />