New pre-amp purchase advice

Helping a friend* decide upon a new pre-amp purchase - current pre amp, a Meitner PA-6i is RIP. I thank you in advance the knowledgeable members of Audiogon to offer good advice. 

*he got me into this crazy hobby over 40 years ago!

Budget: Around $1K, give or take.  He’s considering a new $700 Adcom GFP-815 but open to suggestions. Primary interest: a TT input for low output MC cartridges. Other line inputs needed too. 

Remaining system components: Mission 775SM TT with Audioquest 404i cartridge, Krell KSA 100 MkII power amp driving Thiel CS 3.5’s.”

1000 thanks in advance, Tony