Frugal horn build questions

Hello everyone,

Joined here in the hopes of having build questions answered! Is the front baffle meant to be sandwiched between the two sides?

When I look at the 5x5 cut plan the front baffle length is 898mm but I'm not sure these measurements match what is on the sheet FH3-1.

On that sheet it looks like the front baffle goes over the two sides.

I cut everything except the sides already so I'm wondering how to do things right!
 
A day late and a dollar short, but a quick answer is that there’s more than one way to achieve the desired results; as Dave notes when designing the kit production version, we opted for what we hoped would make for an fairly easy assembly process.