I drove 4Runners (4) over 20 years. I think maybe I carried 1 bike inside 1 time. all other times they were on bike racks. up to 4, for family trips. great vehicles & great fun. but the rear cargo area is much higher than a mini van. the floor to ceiling height I don't think is as high as a van in general, mini or not. there are other threads focused on what vehicle to use for carrying bikes inside. do more searching. maybe in the family recreation sub-forum? your friend may want a 4Runner for other reasons & may be including cycling as one of the reasons to justify the expense.
but how about this instead?
2008 Chevy Express Cargo Van 2500 - $15,900 (Everett - MA)
to each his own but the back of a $runner isn't as tall
2008 Toyota 4Runner SR5 Sport Edition - $9,995 (Cambridge)
but again I love 4Runners, aside from the 1 that was stolen a month after I got it, the other 3 I tortured up to & over 200K miles