David, I know you want one already made up....but danged if I can't convince the makers to build one in 25gr increments for everyone out there :D . I think you are being forced into rolling your own. Being partial to 300gr, it sort of limits my choices unless I get creative. As you have found out, you can build just about any weight you want with mixing the right adapter/head.
If you are looking for some ideas for something different than your judos, you can do the 150 gr glue on SGT from Kustom King with a 75 gr insert, the Redfeather archery Talon 150gr glue on with a 75, or the 145gr glue on Hammers from 3R, a 75 grain steel adapter, and add a drop or two of solder in the cavity (the 75gr are hollow) to make weight. I use solder a lot to get the exact weight I'm looking for (I'm particular about head weight to). I'm sure there are a lot of other options if you mix/match glue on head weights with adapters, these are just the ones that come to mind first.
Sorry, no prebuilts I can think of.