I have a range of Centre Panel and Tip Panel wing joiners for sale that were used on my Nan F5J Model Explorer Q4 F5J model These joiners are all in new condition
The following wing joiners are available:

Centre Panel wing joiners
1 - 1.0-degree wing joiner ideally used for is strong wind conditions - $50 per pair
1 - 1.0-degree wing joiner ideally used for is strong wind conditions - $50 per pair

Wing Tip joiners
1 pair - 6.0-degree wing joiners ideally used for is strong wind conditions - $50 per pair
2 pairs - 7.0-degree wing joiners these are the standard joiners provided with the model - $50 per pair
2 pairs - 9.0-degree wing joiners ideally used for is strong wind conditions - $50 per pair

Plus I have a single 7.0-degree wing joiner available as well - $20

Postage and packing generally $10 however it depend on the number of items selected