Is weird to wet the bed.?
What you will need is plenty of 4, 3, 2, 11/2 schedule 40 DWV PVC pipe. Plenty of fittings, and a 4 twin clean-out. A couple of quart cans of primer glue, a trencher, a tape measure, hammer a few long stakes, a torpedo level..and a good saw. You will also need a couple rolls of 3/4 type L soft copper, and depending on the size house, 2 to 3 rolls 1/2 type L soft copper. The copper fittings to make a distribution manifold at the water heater. An acetylene B tank torch, some sand cloth, tinning flux and a roll of lead-free solder. You have to know how to read the plans in order to get any water lines that are in the center of the wall it stubs up into, as well as where to rough-in the main trunk drain line, its branches and vent stacks for easy drainage. You have to know how to weld without wasting solder and clogging the pipe. You will have to know what to do after the frame of the house is put up and the second stage entails; stubbing up out and running stack-out. When the house is almost finished, its time for fixtures. AND you have to do it all following your state/county/city plumbing codes for what size pipe can run what and get a permit inspection. You cannot move ahead to the next stage without a green tag. Think you can handle it? It takes some apprentices at least two years of the three required before he can take the license test to get a clear vision of how to not waste materials and still design a system that works without fail for decades and decades. So, to answer your query: Yes, its hard.
Spray raid in the hole, then plug the hole with something (cork works good). Kills the bees in there, and prevents reuse of the nest. Do this at night just before it gets dark to avoid being stung.