Double Criteria Search - Exact Match on First but Closest Match on Second

Have searched the boards and can't find this exact scenario, although odd, I imagine its quite common.

Example:

Item Cost Return Value
Car 100 A
Car 200 B
Car 300 C
Bus 100 D
Bus 200 E
Bus 300 F
Train 100 G
Train 200 H
Train 300 I

I need to search the table above to match two items: Item and Cost to return the 3rd column.
Column1 needs to be an exact match, but column2 needs to be a closest match that is less than or equal to the value requested.

e.g.
Car 350 should return C
Train 133 should return G

I've only seen solutions to the effect of an array formula index(match( concatenating the two ranges and then using a closest match but that doesn't work as this isn't an ordered list by any means.

Please, does anyone have any suggestions? I've been stuck for hours.... Thank you in advance!

Attachment 138650

Thanks and apologies. Received a server error when posting, and was trying to delete.