My xj rear chop

[Bigv8]

So bought the xj originally as my winter hack to keep my Kawasaki vn800 nice and shiny for the summer. Whilst it's been off the run though whilst we have had some nice weather I've decided to rear chop the xj and go for something a little different.
Now I didn't want to break the bank and so far have spent about 30 quid for the r1 saddle and another yams rear hugger. Here is the progress so far....









Now time to get the bits removed up for sale. Any idea how much I should be asking for a genuine xj kappa top box mount and top box?