Thanks for your input!
I agree with you, IRunGuns already sell 20 rounds curved mags for a good price. I already have one of those factory 20 rounds mag. They are great, but since few weeks, I have fun trying to give a more ''m14 look'' to my mini 14. I have ebonized and oiled the wood stock(I like the old dark stocks of some military surplus rifles), I am parkerizing right now the steel parts, I replaced the plastic rear sight for an all steel Tech Sights, and I think a straight 20 rounds mag would look great!
I already sent an email to IRunGuns and I am waiting their answers about the possibility to import mags for me. But unfortunately, when I sent my first email to them few days ago, cdnnsports still had 52 mags in stock. Now they are out of stock since yesterday. Perhaps a US gunnutz could pin to 5 rounds one or two mags and sell them to me? Prophet river arms could do the importation.