Grills are always tough Ben. If you end up with some wrinkles, pull a few staples and just tighten the area if possible. Sometimes a little spray adhesive can really help out too, the corner areas on the rear side are a spot I often use it.....I like to spray some in a jittle jar and use a small paint brush to apply it to specific areas.
When we've done finished cabinets for people, we've been taking the frames in to an upholster to have them wrapped, not overly expensive and a hell of a lot less frustrating for me
I've always liked the V's with the full faced grill .
You're almost there man , bet you're getting anxious