Hmmm I paid just £25 for a Dual with lid and A&R C77 but if the cartridge is in good condition you've paid about the going rate. Look for amplifiers with phono stage otherwise you will need to buy a separate stage for use with the Dual.
My advice is to look at older 5.2 AV amps. These were often very expensive, multichannel amps with good sound and the older ones included a phono input. I've picked a couple of nice working ones for 99p
example https://www.ebay.co.uk/itm/SONY-TA-AV57 ... SwKvFa07il
although now at £10:49. Speakers, I picked up a pair of TDL floor standers for a song as they were local to me. Use ebay search for distance as some great speakers come up especially floor standers but no-one wants to pay postage so if local you can go collect.