1 k is a pretty sky high limit if you're looking for something that's training grade and not much higher.
i built this for less than half that with some parts i had lying around. the frame, fork, headset, rear wheel and ss conversion kit were all 410, the rest i had lying around.
weighs about 18 fully loaded and spins like ****ing crazy.
aluminum and carbon with a heavy seatpost and brakes.