uf you buy an sacd player , you will want to buy sacds. that's your chice.
in most cases the redbook layer will sound better played on a cd player.
as to recommendations, i would try to find one having a tube. instead, you could consider using your phillips transport and buy a minimax dac for $600. if you want , you could look for a decent transport for the remainder of your budget, in lieu of the phillips. perhaps, there is some kind of "server" or laptop that you can buy for no more than $400. I am not an expert on servers or laptops. i use the ps audio perfect wave dac with the minimax.
in most cases the redbook layer will sound better played on a cd player.
as to recommendations, i would try to find one having a tube. instead, you could consider using your phillips transport and buy a minimax dac for $600. if you want , you could look for a decent transport for the remainder of your budget, in lieu of the phillips. perhaps, there is some kind of "server" or laptop that you can buy for no more than $400. I am not an expert on servers or laptops. i use the ps audio perfect wave dac with the minimax.