Wow! I never knew the Ronal R-10's had Nissan counterparts... shmucks, hehehehe...
the closest i've seen are those on old school DSM galants. but they don't have the deep dish/lip thing.
looking at the EVO-ish bumper on the 101, on second thought it actually looks good... but i'm half expecting a big bad a$$ intercooler mounted at the center air dam and some serious FI tubing peeping at the sides.
but if you had these on your hood you can ditch the whole intercooler and FI idea altogether... hehehehe!