Insurance and pricing

[Smellyferret]

Its house insurance time again and I'm pricing up replacement costs for the TF's (I'm expecting several thousand!! :o )

I need some help pricing some of the rarer and harder to get TF's I have - can anyone help please?

G2 Orange Devastator (complete with cards) (I'm guessing £150 ?)
G1 minispies - I have 11, are any rarer than others? (£7.50 each?)
Diaclone Kickback, loose complete (£50?)
Kissplayer sparkbots, boxed but open (no idea, it took me 3 years to find! £100?)
Test-shot aveo swerve (does £75 sound too much?)
Black G1 keyrings (£25 each?)

These are obviously 'If I had to replace' prices.

Cheers!