Correct here - first find out the wieght the hitch supports. Start with the Motorhome magazine towing guides (by year) to check what vehicles can be towed four wheels down. Many automatics used to be towable and now the list is VERY short on newer models. Check check check the owners manual before you buy a tow vehicle and be sure you can obtain a baseplate (attachment for towing bar to car)for the toad.
Once purchased you will need to get a tow bar, strongly recommend and non binding bar. You will need a base-plate for your vehicle installed and recommend a supplemental brake. Look for a plug and play style where all you do is connect the normal electrical umbilical cord from RV to toad.
If you or your husband are handy costs can be kept down. Otherwise, you are looking at something from $3000 and well up to get all needed equipment purchased and installed for the most common setups. Others may have ideas on how to reduce costs.............
That being said, it is EASY to connect and disconnect. One person can do it easily. Takes less than five minutes after some times connecting., moments to disconnect! Happy Trails