But not for the E7.
Although I fear that this distinction may earn me my first
, I was confused here by the use of the term "grill"- because an E7 as delivered had screened body openings more similar to the "chicken wire" of an F2 than the grill of an F7. So assumed what was meant was the aftermarket grills or louvers that were applied to many E7s in later years.
@diezmon- I was going to recommend you follow
@hegstad1 's advice, because those units of his look fantastic, but then saw your comment- so you beat me to it.
@hegstad1 - that is brilliantly simple and I fully intend to steal that technique.