I like your idea and am going to modify my press from the current brass fitting washers to the wood blocks, so right about the sloppy fit.
How does it work with fixed bearing headsets like King and Cane Creek?I took a similar approach, but improved the design I used Park's cup guides from the actual HHP-2 tool. You can find them on Amazon for $30 or so. I also used a 3/4" threaded rod (12" long) and two 3/4" washers/nuts. Plans for the future are to weld a "T-handle" to one end so I only need one wrench to use it. I'll probably weld it to the nut so the washer still has a wide surface to rest against. All-in-all a very comparable alternative to the $140 Park tool as it virtually is the same thing since it's using the same cup guides.
I'm also going to make a headset cup remover like this as soon as I can find an old seatpost that will work. My spare 30.9 post is too wide.
No clue who you are replying to, but integrated headsets do not need a press. The bearings just drop into seats in the headtube.Do you mean integrated headsets? I'm not familiar with fixed bearing headsets...a quick Google search led me to integrated headsets, is that what you mean?
I'm replying to the post right above mine regarding "fixed bearing headsets".........No clue who you are replying to, but integrated headsets do not need a press. The bearings just drop into seats in the headtube.