This is a bit over your budget target but certainly worthy of consideration. The kit comes with Lundahl output transformers and Alps audio grade volume control. The kit might also come with Takman resistors and Mundorf coupling capacitors.
https://www.tubedepot.com/products/elekit-tu-8600-300b-se-tube-amplifier-kit-limited-run
https://www.tubedepot.com/products/elekit-tu-8600-300b-se-tube-amplifier-kit-limited-run