Chile/Argentina in a motorhome and possibly South Sea

Looking for a female travel companion for a motorhome trip through Chile and/or Argentina. Preferably during their summer, which is our winter. See and experience + hike a lot: National Parks, cities, Atacama, Andes, mountains, glaciers, Patagonia, get to know the country & people. Campers, e.g., from Ruka or AndesCamper, cost around €200/day; I can cover up to approx. €150 of that. I am a non-smoker/-snorer/-grabber. Similar in the South Sea but without a camper, but partly with a rental car?: possibly October-November due to storms+rain, from December island hopping, visit several islands: Fiji, Tonga, Cook, ..? relax, beach, snorkel, dive?, nature, country & people. Interesting offers from Miller, Gebeco, Diamar, Pacific travel House, but very expensive -> possibly organize it myself? Flights approx. €2000 to €2500, initial setup costs quite high with €3-5000 from... :( Possibly also destinations in Asia + EU. Sympathy+humor important... :)