Igor, the Buchon kit I have didn't have the G-6 type gun pods. It had the rockets and multiple rails used by the Spanish Air Force, and lots of other bits, but not the pods. Built mine as one of the modified Buchons from the BoB movie, as the original Hobbycraft-issued kit for this is no longer available.
It seems that, when Academy re-issue a former Hobbycraft kit, they provide better canopies, as, unlike HC items, these are thin and very clear. Not had a scratched one -yet!
Removing scratches and polishing a canopy should only take a couple of hours, at most, depending on how bad the scratch is. The trick is to use worn, very fine wet n' dry, used wet, and sand (if needed) very gently. Use the equivalent to 'T-Cut' car body colour restorer, with a soft cloth, and polish this in, then polish it off, clean the canopy (dry), polish with a clean, dry, soft cloth again (yellow, car-polishing dusters are good for this, followed by cotton wool), then wash the canopy to remove any traces of the polish. Once done, repeat the above steps if needed, until the canopy looks free of marks. Once dipped in Future, if required or desired, it should then really sparkle.