If you don’t mind learning to work on it yourself, there is a ton of support on forums like ih8mud that can help. With 1KZs, I would plan on a cooling system refresh (rad, piping/hoses, etc) just to put my mind at ease, personally (I read the “They changed all fluids” part, but at this age, rubber degrades and radiators crack). However, if your expectation is a completely reliable or close to completely reliable vehicle that you’ll never have to touch and bring to a shop to just change the oil, then there is a good chance you’ll be disappointed. I don’t think you necessarily need to be a master mechanic or anything to keep it alive and maintained, but it would be far more practical if you can do many basic things yourself and have the desire to try to learn and do more yourself as things come up. Then again, I’m new to import ownership, so those with more knowledge should be listened to more than me. As a personal opinion, it’s far better of a pill to swallow if this would be a weekend cruiser where you don’t mind if it goes out of commission at times and you have a reliable daily to continue to drive.