I am an electrical contractor in the States so your codes, methods and equipment may be different, but If I was doing that here: Set a couple posts next to the pole to set your equipment on. Almost everyone here makes it out of treated lumber but I prefer to use metal pip/rigid conduit and unistrut cross members fastened to the pipe with strut clamps for a more permanent install. Mount your meter and a 3R main breaker panel with feed thru lugs. The feed thru lugs will feed the house, and you will have some breaker spaces in it to tie the PV into and have temp work power. Not sure if they have a bussbar rating requirement up there like they do here, but you should look into that so the equipment will be sized properly and ready for the PV connection