If you want to REORG a LOB tablespace then you can just REORG that LOB tablespace. You want to run REORG of the base tablespace using AUX YES. This will work fine, but if you're doing this against a compressed SPT01 then make sure you do not also specify KEEPDICTIONARY until you have the fix on for PM67696.
Also you want to make sure you have PM66874 applied, when running the REORG.
Before you go ahead with the REORGs, we discussed that you would validate that there isn't any dormant corruption that REORG could trip over.
To do that, I recommend you run the following:
CHECK LOB SHRLEVEL CHANGE
CHECK INDEX SHRLEVEL CHANGE on the aux index
CHECK DATA SHRLEVEL CHANGE on the base tablespace using SCOPE AUXONLY AUXERROR REPORT.