Either bolt the press to a steel frame suitable to support the pressure and put blocks under the work piece when you run out of travel or:
I bought this recently and it works fine for the AndyMark (Dumont) broach:
http://www.ebay.com/itm/261742003018
Mine is currently in my garage on a custom cart made of 2x4 and 3/4 plywood with locking casters. It was lifted with a car engine hoist. Shipping from Ohio took 1.2 days to NJ. The ram has a 1/2" hole in the end and there is a metric set bolt which doubles as a stop when the ram is lifted. Put a longer metric bolt in there and you are all set to broach. Mine has a casting void at the bottom which makes no difference to operation.
Also consider this (see Craig Roys post above):
http://www.ebay.com/itm/261956665389
The advantage of the Dake press is the pressure gauge.
You can use a short ram hydrualic piston from Harbor Freight filled with glycerin as a pressure gauge plate on the previously listed ratcheting arbor press.