55 Bad Grill Fitment

[Miller197]

Hey all,

New member and first time poster on here

A few weeks back my dad and I picked up partial project which had just been shipped over to australia from america. Its a series 2 1955 chevy pickup.

So heres how we picked it up:
-Its got a 55 steel cab
-57 steel hood
-Fibreglass reproduction guards (we assume there 55 because is no flat spots inside the gill area)
-the upper grill bar is steel
-The lower grill bar is fibreglass (and is missing the tabs that 55's have)
-And came with a brand new 55 chrome grill

BUT:
When we fit the grill we have terrible gaps either side and its very tight top and bottom (see pics) and we are usure of where the problem lies... Has anyone come across this before?