Hi Mark take a serious look at Radu Tarta's DHT 4p1L tube preamp. I have owned one in the past and hope to get a custom one soon. Radu is a very talented builder and uses Lundahl transformers for power, choke and output. The link shows his most recent build with a $400.00 remote control. If you don't need a remote he will likely build one for you without it at a reduced cost.
https://simplepleasuretubeamps.wordpress.com/products/
https://simplepleasuretubeamps.wordpress.com/products/