I have the Jobo system and love using it. I've also used the Yankee tank, and yes, it can be a bit challenging to use..
I also have a Patterson orbital tank which I use for 5x7 and 5x4 filsm. There is plenty on the net on how to modify them, and the results are great.
I've never used the mod54, but it seems a good solution for the price. Maybe you could make your own version?