As I wrote before, I'm not a hi-fi expert but I do know about buying such items at auction and I've also done a bit of googling (to find out the specs of those units and to check eBay prices). So, for what it's worth, here's my input:
The amplifier and tuner are both mid-80s vintage, so they're getting on a bit. However at 2 x 65W RMS the amp has enough power for anyone's domestic needs. (Indeed, it's good enough for a small hall).
The tuner obviously doesn't have DAB (which, particularly with the planned switch-off of FM radio services, isn't great) but it should be of good quality.
The cassette deck will obviously be of around the same vintage as those two items as well. (Old cassette decks can be OK but they generally exhibit signs of wear of the tape heads).
The CD player is obviously more recent and should be a good'un as long as it doesn't skip (as many older CD players tend to).
Any record deck from B&O is bound to be of highest quality (as long as the cartridge is OK - they're not cheap to replace!).
There are no speakers included, so you'd need to source those separately. (Charity shops can be an excellent source of good speakers but make sure that you get a pair which can handle 65W per channel).
If the lot goes at the lower end of the auctioneer's estimate, you'd be getting the collection at under half of the aggregate price you'd have to pay on eBay but, unlike eBay, you can't get your money back if the items don't work properly.
You need to remember as well that the auction room charges a whopping 18% buyer's premium but the VAT on that means that you actually pay 21.6% above what you bid. (So a successful £50 bid would really cost you £60.80).
If you want to be able to play vinyl, and you've already got decent speakers (or you can source them cheaply) lot 116 might be worth bidding for. If you don't want to play vinyl, lot 117 might be a better buy, especially if you can get hold of a cheapish CD unit from eBay or a charity shop.
To be honest, I'd be a bit wary of buying stuff that I don't know works as well as it should. I'd prefer to look out for suitable hi-fi separates in the British Heart Foundation stores which specialise in furniture and electrical goods. They're usually reasonably priced and, importantly, sold with a guarantee. (Your local store is on Arundel Gate).
So how much of a risk are you prepared to take?