Hmm. 75 foot strip beside house. Strip implies narrow. What, 12 feet? 6 feet?
At 6 feet that's about 500 square feet.
How about this:
Y connector at faucet, $30 buck electric hose bib programmable timer. 120 mesh inline filter 1/2" black poly irrigation tubing, T if needed. 1/2 circle microsprayer every 4 feet. quarter sprays by the AC. Fasten down well with geotextile staples. Owner would have to bring timer in in winter, and replace the battery evey spring.