You know what...
Hello,First off, I have to assume that you can weld up, drill and tap alumiminum, if not well then find someone who can and does, who is clean shaven, the later being the trickiest part...For a 22 to 27, you can modify a Road-Runner, dual axle, or similar trailer with a two point to four bearer roller system per the photo I hope to upload here...The trick is to wait until your next bottom paint pull, measure up the jack stands and what not, and apply same to a ladder frame, I know this is not the be all answer you are looking for, but it is how I intend to build a trailer for my 22, say next millenium...Also, if you can 'play the game' and find the back entrance to a trailer manufacturer on a 'smoke break', you can inevitably find a guy with a truck rig who can do you up over a couple of weekends, but make sure he is clean shaven...Once you delve into the dark world of trailer makers, you will see thats it's not such a big deal, but more like walking into a Harley rally trying to sell trinkets...Best of luck, and be brave...If I can find a more direct link, I will post it in a direct way, 'cause I want what you want...SH.