67 Cuda bucket seat reupholstery help needed

Every old retired upholstery man I have known had arthritis crippled hands. That's because it aint easy work. The skins are supposed to be tight as a drum.
The factory workers had a pneumatic press above their work stations to compress the assembly. Put the hog rings on and release the press ( No wrinkles ). On to the next work station.
Last seats I covered were Legendary's black skins. I did renew the batting in the rear seat, new foam buns in the front buckets. Aint no way I would have pulled the material to positions with my hands. I stacked the assembly in on the floor. I laid a piece of 2X6 across the frame bottoms and had adult son and daughter-in-law stand on it while I attached hog rings. Wife stood on the bucket seat sections for me. Different pieces of wood of course. Mimic factory method and results.
Browse ebay and you'll see lots of car listings that state "new Legendary seat covers" and many of them show the wrinkles in their pics. That shows us they didn't put proper effort in the job or they didn't renew those aged, collapsed, fillers.