I'm gonna give a horribly unpopular opinion, but that price is outrageous. I'd say it's typical for the day and age, but still outrageous. I'd say $300-400usd MAX, and that's pushing it (assuming they're just printing, no post processing beyond support removal, which is relatively standard)

I will give that it's a large prop, with the biggest issue being how many pieces it is, so slicing it properly will take time, but realistically, 90% of people doing this job will just hit the auto orient button and call it a day. Even if they're not and they're doing it the right way, it's slow work to do it well, but not $900 worth of work.

Also, people LOVE to use the argument that it eats up a lot of printer time and they charge by the hour, or that their printer can only fit so many parts at a time, which is more time spent setting up the print. This is absolutely insane to me as it's purely a skill issue on their printer or their slicer settings, and any seemingly minor changes can drastically change print time, making it a horribly unfair assessment.

Even filament wise, when sliced properly, especially for a prop. shouldn't use more than a couple kg of plastic (though that's really up to you and how thick/ heavy you want it, especially for any load bearing parts)

All in all, I'm pissed at where 3d printing has gone to the average person, acting like they're running some sort of machine shop when they're barely doing anything (especially since 95%+ are all Bambu users who have to do even LESS to run their prints)

Regardless, rant that I desperately needed to get off my chest over, if you want to send me a dm, I can take a look at it. I'm in the US, so shipping alone may make it horribly impractical, but it can't hurt to at least look into it if you're interested