Small update.
Had the parts and tools delivered.
The cam locking tool was cleaned up, then I welded it up for strength with a lick of paint to finish after a lot of reading other peoples experience. Not pretty but will do the job
Even the chain which I believe to be genuine VW in INA packaging has the copper link like OE
The INA parts look like really good quality and a few have the VW part numbers ground off
Here is a genuine VW part and you can see the part numbers etc before they were ground off
Finally the cam adjuster which is fresh and smooth on the inside. Feels like a very weighty and solid part, so feel more confident having seen the quality of it now.