Fairdalebikes.com. I got one for my son a year ago and it has been fantastic. Two other guys at the shop picked up frame sets and really like them. Only steel frames, good quality, priced from 460 to 2500. My son has the Weekender Nomad. Mildly expensive model, but a wonderful ride. He commutes, gravel rides, and brevets with it. Fairdale designs their frames from a BMX background and are over built for sure, but are strong!
The Fairdale Archer is under $900 and is full 4130 cromo. Of course they don't use the super thin walled stuff as it may not be durable enough from where they stand.
The Fairdale design is stable and very predictable with or without a load. They are not super light, but again super light does not fit the design parameter for durability. Sealed cartridge bearings in the hubs and bottom bracket. Super low maintenance. SRAM X5 is mid grade stuff and works well. 9 speed drive train, single chain ring