afaik you're not going to find 6.7 long, 2.2 throw chrysler width rods from anyone. i "think" eagle has a 6.76 long rod with the other dimensions you mentioned. if you're asking about who has the widest chevy width rod i wouldn't bother as now you're into manufacturing tolerances.

i'd say if you need a 6.7, 2.2, .990 pin rod you have two choices either custom rods to get a wider BE or chevy rods with the standard .990 BE width. there are plenty of engines out there with a lot of side clearance and no one likes it but i can't remember anyone having real issues doing it. as for oil control imho the bearing clearances are what primarily dictate that, of course pressure and viscosity come into play as well.