Match weights were not meant for the Mk23. Suppressors were.
With no insult intended to the O.P., that is just RI-DIC-U-LOUS.
If you want a PUNISHER GUN, fancy up a 1911. The venerable MARK 23 remains my APOCALYPSE weapon all by its lonesome......
As for what you should or shouldn't do that is your business and While I like the stock MK23 I also like my modded MK23; to each his own.
Match weight dot com emailed and said they don't ship internationally. They linked Raineer arms as a dealer that might. I have emailed them.