Damn that is one customised gun. Like Cinders said its pretty common for guns like that, the .25 especially, but with a one piece stock on an MLE action. As far as I know Sportco were at the forefront of making the barrels for these, and even did their own kind of 'custom' rifles off the Enfield action. I have seen a sportco gun in .22 hornet with the charger bridge milled off and in sporting configuration built off an Smle before. Would have taken it but some idiot decided to cut the barrel back to about 15 inches so it looked terrible and likely would not have shot amazingly well.
And Cinders that is an impressive list there. For a second I thought that might all be off your head haha.