Those transfer values are totally unrealistic!
MacDonald, Rose, Hemmings and Bennett would attract a figure of £100k+, but I'm not so sure about the rest. That is not being disparaging to the rest of the players ..... far from it.
The fact is, that our players are worth far more to the club right now than their likely market value. For example ... players like Pearce, Benning, Diamond, Byrom, Hamilton, Anderson etc. might not have a high market value, but they are worth a lot more to this club at this present time.