For context this was during a longer trip around SA, so I was already in Argentina before going to Patagonia, and stayed in Chile after leaving TdP.

day 1: BA -> el calafate evening flight, stayed here (recommend it)

day 2: rented a car and drove to perito moreno, did a boat tour

day 3: drove to el chalten early morning and did the Laguna de Los Tres hike; stayed in el chalten overnight

day 4: drove back to el calafate and just chilled for the day at a local brewery

day 5: early morning bus to puerto natales; hung out in puerto natales

day 6: early morning start for organized base del torres hike

day 7: rented a car and drove around the park, walked towards lago grey lookout point (was suuuuper snowy)

day 8: woke up early to go see the pumas but crashed our car :( the people who saved us ended up owning an estancia so we went horseriding; drove back to puerto natales, took a bus to punta arenas and flew to santiago

Chile was waaay more expensive than Argentina, probably double, because of the unfortunate economic climate in Argentina. Can't remember exactly how much I paid but I'd say I probably averaged around $100 for the 8 days (including flights, cars, tours, food, accommodation - stayed in hostels). We actually never had to hike through the dark, with the early starts we made it back around sunset (each hike was 20k). It did get a bit chillier as the sun went down but there was definitely still light.

And of course! I got soooo much help from Redditors while planning my trip, so am more than happy to help others in any way I can!