Plus one for doing it right however achieved, not thru windows space. PVC chase on basement ceiling, rim joist penetration here. If doing it over, I’d put the entry panel less close to ground which causes the coax thru entry panel bottom and lower arrestor connections a bit awkward......Hey, if I rotate the mounting plate in entry panel 90 degrees, maybe connections a bit less awkward....said another way, think hard.
73 and good luck,
Chuck KC9QBY