Fanatec. Without having to buy another wheelbase, you can upgrade the Fanatec from 5Nm to 8Nm. Granted, that can be $150USD if you go with an official BK180, but you can also go to the grey market and get a PSU for considerably less.
I wouldn't call them "grey market" since that usually means official products sold through unofficial outlets. The power packs you describe are merely Chinese knock ups with no backup, no QC and no assurances that they won't damage your wheelbase. At best they would be recommended "at buyers risk".
Moza I have a R9 base with CS wheel and ES wheel with GT mod Quality is good software is really a plus