Now the real problem is getting hold of really accurate data on wing areas and weights etc.
Several of my attempts since 1995 have been thwarted because I just could not get hold of the correct data and/or reasonably accurate three view drawings from which areas and positioning of wings etc relative to a reference line could be determined.
One might be able to buy an Airfix Mk6 Firefly (1/72) and use that to determine wing and tailplane etc positions but one might not if that model has beeen deleted from the sales catalogue.
On the other hand if you can find an FS piston engined aircraft of the same vintage and approximate size you might be able to use that acft cfg file as a guide.
Despite any such problems please don't give up, I am sure that lots of FS pilots are waiting to fly your Firefly MK6.