The Myford lathe should sell easily, here is one on Ebay here
the milling machine is a Dore Westbury. There are 3 on ebay with asking price a lot more than I would be prepared to give DoreW
The belt sander might fetch a bit, but we can’t see the details. I’d advertise them on the classifieds on this forum and/or https://homeworkshop.org.uk/
Last resort is a dealer, but they have to make a profit and so will offer much less than going rate.
Unless you’re prepared to do a lot of sorting and multiple small ads/ebay listings the myriad tins of nuts bolts etc are pretty much worthless, as are many hand tools. There is a model engineering club in High Wycombe https://www.hwmec.co.uk/, they might help, but most model engineers are already well set up and have enough surplus valuable stuff.
Can’t comment on the radio/electronic stuff