Bolt location/identification help

[GRN250]

After having several guys work on his truck, a friend had it delivered to my home in hopes of getting it reassembled and running. Many items on the top of the motor had been removed and placed in a single box without labels. I have everything back together and the truck is running but three bolts and a nut still need to be installed. Can someone please help identify where these should be installed. I do realize this is a big ask but wanted to resolve this before having him pick up the truck.

 

[6.0 Tech]

Was the core support removed? The bolt in the left looks like a core support mount bolt, the 2 8mm head ones look like they mount condenser, radiator, trans cooler, hood latch, etc, nut could be anything, can’t help you there, sorry.

 

[DEEZUZ]

Nothing engine wise. Usually those are fan shroud, body panels, body mounting.

 

[GRN250]

Thanks for the replies and information. Checked the locations suggested but haven't found where they belong yet.