I am going to give this hefeweizen a go to night.
Since I am not doing a decoction mash, I have seen that the addition of some Munich/ Melanoidin malt can help make up for it, here goes nothing!
19 litres

5.75 lb’s Wheat malt
3.75 lb’s Pale malt
1.5 lb’s Munich malt
0.22 (3.5oz) Melanoidin malt
0.17 (2.75 oz) Sauer malt
Mash at 67c for an hour,
Hops, Hallertauer 1.5 oz (2.5 AA%) for around 16 IBU’s
Yeast, a 2 litre starter of WLP300, 48 hours old
O.G around 1.060, calculate for 70% efficiency