Dear OP - You have a wonderful Dad! And, you are an amazing son for bringing music back into your Dad’s life.
You certainly can get a system for under $1,000.
Right now Music Direct has a Marantz PM5005 integrated amp with a mm phono stage for $375, down from $500. Marantz is a very fine brand that your Dad should enjoy.
Also at Music Direct is a Rega Planar 1 turntable with mm cartridge for $525.
These 2 pieces of equipment and your Dad’s current speakers should get him back on the road!
Good luck to you and your Dad.