You could use an arbor press which is just a hand operated press. They are fairly cheap at princess Auto.
My father use to use a press for making paper. It was a screw type so you would just spin the handwheel. Not as much force applied like an arbor press but it had a large flat clamping area...8.5" x 11"
You could use a short length of steel pipe and round bar for a die. Say the pipe is 1" dia...thats the internal diameter. So get some 7/8" round bar and a cap for the pipe. Pack the pipe then pack/compress with round bar. Keep the whole rig short enough, you could get away with a big C clamp instead of buying a press.
Ive done something similar. But this run i am expecting close to a 1/2 lb of kief to press and i thought it might be just as easy to press in one big block and keep it all under pressure for a day or two...When I press hash, I usually just press it with a glass bottle with hot water ala Frenchy style.