If any .org.uk are going to reach 4 figures, it will be some on your list.
Rather than take £250 for the lot, at the bare minimum list some on DomainLore at a starting bid of £50. That’s going to give you the fire sale value, but you have 8 chances of seeing bids climb from £50 each.
Also I think @JMI was just offering a valuation of what he thinks the domains will sell for on here, the forum, not making you an offer. (I could be wrong)
And finally the last one has started: Taxi.org.uk
Arguably the best one as well, as quite a few taxi companies use a .org.uk domain name with taxi in it, so there are some changes for a resale here.