Yea that sounds about right for a new clutch may be able to find one a little cheaper if you looked around. I would check your tranny fluid level on the stick it may be a little high. When you nflushed you may not have got all the fluid out but then you added all fluid in so you may have a little too much. I have seen some strange thing with tranny fluid levels being wrong. If it was clutch I would think it would be in all grears but it still could be you should probably look into replacing that anyway since you have so many miles on it.