Plastic radiator ducts from AR bodies or 5 star racing

Whats your opinons on these?

I’m thinking these are worth the cost vs building my own

The 5 star bodies one is 6 pieces and the ar bodies is two, i kind of the like the idea of only two pieces better

https://www.lefthanderchassis.com/v2a/viewproduct_group.asp?idgroup=2513727