It's a real pity there isn't the manpower to hand.
An F4 type update for this sim would be amazing.
I would pay for it, and I'm sure plenty of others would too.
Have you tried begging the BMS chaps to see if they would be interested to give some assistance?
We could not charge for it - certainly that has never been the plan. And so there is part of the problem - we don't see how we could really go commercial with this. The original IP rights will have to be protected, as it has been with all our mods.
Begging hasn't worked, and yes we have been in contact, discretely, with a number of other groups in recent years. All we can say.