I would push for £180+ for the Hodgson.It's irrelevant that it originally cost £39.99.Watch the couple on e-bay.Wait 'till the auction's are finished and print off the value sale prices as proof of value.You could always send a "receipt" of the price that Adam paid you as well(that would have been £180- ish as well-wouldn't it!
Send them along with the receipt from the special delivery,the Minichamps and your claim form(not forgetting to claim for you postage back for both sending it originally AND getting it back AND sending it to them-trust me it adds up!!)If you are not happy with their answer or valuation,the ombudsman is great!As you can guess,i've actually done this before!