Here are just a few pictures of the heat pump and indoor unit ductless system components I installed in my bonus room project. These are the Blueridge components from Alpine Home Air. This system works great. 18K BTU system for two spaces within an overall footprint of 600 square feet. I cut in a cedar mounting board into the back wall to install the fuse panel, surge protector, and outlet for the line sets. The install was very straight forward and simple and Alpine is a great info resource with questions. I had to buy a flaring tool to fit the copper line fittings together, and used Nylog Blue for all the joints.
All things considered, I bought the heat pump, two indoor units with mounts and remotes, service track with corners, T's, unions, and covers for the line sets, 3/8" and 1/4" insulated copper line, drain tube, communication cable, main breaker for in-shop panel, conduit, surge protector, 220 wiring, fuse panel, heat pump mounting pad, and other random fasteners etc. and it ran me just over $2K for the whole system. My friend is an HVAC tech and came over to charge the system before energizing which didn't cost me, but only took about 20 minutes or less. You can also buy the preset length pre-charged line sets if you don't mind having odd length lines. I didn't want the extra coil of line, I wanted custom fit lengths so I opted for the bulk sets and cut to fit. But I have a ton left over since they only come in longer length that I needed for my project. That may have been a cost savings had I chosen the other route.