I have been trying to figure out a way to posibly do the same thing. I haven't been able to find a way to make a quick disconnect system though.... But I will be honest I haven't really look all to much into it either.
I am on my way to the pony right now... And I hope it is because I have had the most boring hour ride I have had in a long time and I got about another 45 minutes of this monotony...