Little help with insurance


New Hunter
House insurance is due, and I have been advised to take out seperate itemised insurance for my Star Wars stuff, I have got most things squared away price wise but am not sure what to put my fett lid down as, I don't want to under price it just in case, it's a don post adaption, but don't know what to compare it to, as it's not a kit one but its more than the don post aswell, any suggestions ?