Weekend, seems I see 15 head bolts in all with three being 3/8" studs which tighten to 25 lbs. torque, the others 90 lbs. Seems like you're coming up short. I don't think they're going to interchange so you'll get them in the right place. In the case of long and shorts just be sure they don't stick too high or sink too low.
If I can help, let me know. God Bless. Pon