You must watch this video. I tip my biretta to FA and to NLM.
This is a 5:25 length video of the transformation of a typical modernistic free-standing altar into a very beautiful ad orientem altar. The setting is a church in France where the FSSP are able to work. The French text says the transformation took 15 minutes. The video is accelerated.
This could be VERY instructive for priests in parishes. VERY instructive. I recommend you make this little video known and loved.
I eventually got the plugin to embed this. Enjoy!