You could do worse than this!
https://pinkfishmedia.net/forum/thre.../#post-5251368
Same power amp as in basic integrated - problem is you'd need a pre-amp and Croft ones pretty rare, but on the other hand you'd be on the Croft ladder and it's at a good price. At lot of Croft aficionados preferred the basic 7 power amp to the more expensive 7R with the regulated power supply (see discussions on Croft thread on the WAM - when it's up and running!
https://www.hifiwigwam.com/threads/croft.56593/