Really
I just downloaded them just fine
anyways here's a mirror:
https://www.dropbox.com/s/vc2qwnmk53si624/Mario Kart Arcade GP - UGP1.wad
https://www.dropbox.com/s/ziie450fopviq6v/Mario Kart Arc. GP2 - UGP2.wad
Thanks abdallahTerro These 2 work just fine.
Many thanks!