HAHAHA, sorry I just had to laugh because I am "stuck" just like you. Unfortunately I have not figured out a solution yet so I am of little help. I have given up as of now and put the forks back on the bike. I have some extra sets that I am going to work on this week hoping to find a trick to getting them apart so I will post if I find a way. Unfortunately replacing the fork seals is even more of a pain and my forks need those done too. Anyways good luck and post if you find a way to get those caps out.
These have to be the worst design I have seen.
1984 Yamaha YT 60 Tri Zinger(current project)
1983 Yamaha YTM 200 (rear suspension kit)..... long term project
2004 BMW R1150R
1972 Honda CT 70
2007 Lifan 110