Obviously, the simplest arrangement is one with the cylinders set into four wells. With two cylinders at each end of a wheel rail for each side of the truck.
The only problem is that there is an inherent problem with this arrangement that will have to be addressed and that is insuring all four cylinders will lift together to keep the two rails lift together and level as they lift. Simply putting a common pressure on the four corner cylinders will not insure this will happen. Unless your truck loading is exactly the same on each cylinder during the lifting is that the cylinder(s) with the lowest loading will try to lift to a full extension height before the next higher loaded cylinder(s) will even start to lift; and, I am sure you can appreciate the problems this creates.
I observed this problem many year ago in a set of hydraulically operated parallel control valves; but, unfortunately I did not have the opportunity to see how it might have been addressed. Just be sure this issue is addressed in whatever lift design you are offered.