ND does "recruit" from Holy Cross College (used by Jr College as I remember). It's two most famous FB related alumni were Rudy and (a surprise to me) Skip Holtz
As is noted Prop 48 was one of several attempts by the NCAA to allow athletes with graduation potential to be recruited. ND used this "out of the box" tool for FB to recruit Rice and Foley (for some reason Zorich gets mentioned in this context but didn't come in this way). It involved no involvement in FB at all as a FR but losing that year of eligibility.
BTW: USC did do something way out of the box (and ethically challenged to me) to improve recruiting. After being pulverized in the 66 game they launched what was officially known as the "national recruiting program" ... what they actually did until sometime into the Devine/Faust period was to use their affirmative action program to get essentially bypass their normal admissions standards. In the spirit of the "end justifies the means" when caught they claimed it was ok because other PAC schools would have recruited those players. Meanwhile, in the "ND world" Ara, etc were getting flak because USC was getting better recruits - for whatever reason (but this is how ND rolls in general) ND never officially mentioned or criticized this practice and just kept on playing as if the field was level.