Broken Carburetor housing

[Raven91]

Hello,
First time posting here. I recently purchased my first bike, an 89 GS500E and was trying to get into the carbs to clean them up. The screws keeping the bowls attached were factory set and so I tried to use impact to loosen them. Long story short, I ended up breaking the bowl and lower housing on my carb. This I know is not good. .... and Bikebandit lists them for over $400. I am in Juneau Alaska, so my options are limited here. Does anyone know of a way to get second hand carbs for the 89 GS or does anyone have a parts bike with the carbs that they would be willing to sell. I am sure its a long shot, but I don't know what else to do. Its my first bike and this is so disappointing.

Let me know if anyone can help.

Thanks