Looking for VF500 carb parts.......

Ok found out what some of my carb problems might be..... Took the mixture screws out and found there was no washer in the front 2 so the O rings were screwed up, had 1 odd ball screw (different head size) in one of the back carbs and both back needles on the adjusting screws are bent. That being said I'm looking for 4 Idle screws, 2 washers and 4 O rings. If anyone knows where I can find a new(or good condition used) set please let me know. I checked with Honda and all the online sites and the only thing I can get is the O rings every thing else is discontinued.

Found a set of Mangna carbs that are completely rebuilt for $378us and the only difference I can find is #1 and #3 main jets are 105's where as the Interceptors were 102's in 84 but were 105's in 85 so I'm also wondering if I should look at picking them up instead of trying to get my old ones working.

Thanks for any advice anyone can give me.