I'd pay 4m for him under the right circumstance. 4m is probably really high. 6m (by the other guy) is crazy high, but a figure that is somewhat reasonable under the circumstances I listed. I really think it's a legit bid and not punishable, is all I'm saying. Not saying I think he's worth 6.5m.
That buyer probably has 30m and the player can be amazing with an absurdly cheap salary. I can't imagine (m)any SFs in BB with higher combined OD/ID/REB/PAS/SB. I assume he would be a ratings powerhouse with good GS.