You could have a plumber come out and clean the line and locate the issue for probably a reasonable price. Once the issue is located, you could dig the pipe out yourself and then have a plumber repair or replace it to save money.
I watch a YouTube channel called Drain Addict and this dude uses a pressure washer with special heads on it to clean out drains and cut away roots. He then uses an inspection camera with a locating beacon to identify where the line is buried, where the break is at, and how deep.
Search for “kits to motorize shutters” or what have you. I found some on Aliexpress a while back for our miniblinds that worked off of wifi and zigbee communication. In the end I wound up buying some Ikea Zigbee shades but the kits would have worked too. I’m not sure exactly what type of blinds you have so I can’t recommend anything specific.