Your biggest consideration will be how the bumper is attached to the frame, i.e. it's strength and the strength of the bumper material. If you are going to install the receiver yourself, you'll need to know a bit about metal and how it can be supported. There are more than just a couple of disengaged bumpers and torn bicycle racks I've seen on this Forum.
It may be in your best interest to visit a frame shop and get their opinion. Usually, a good welder can have the receiver installed quickly and have it durable for your purpose.