Lol damn i thought I had alot of master balls (had 9, from trades lol) xD
I catch most my raid den HA mons with diff balls first too, just to guarantee I get it. usually use a repeat ball, works pretty damn good as long as you have caught the species already. Then rebreed with a random mon of the species caught in an apriball. Preferably male, but I'll rebreed with ditto if it isn't =p
Items can't be hack checked afaik. I can't guarantee the apriballs I obtained in trades are all legit either. I use them anyway, as long as I rebreed the original mon caught with it I don't see the problem.
Anyway, i'd be sending you a random leftover mon holding the lure ball. Once you have an HA omanyte in a lure ball, I could send you one of the other HA fossil mons I have for it (Level Ball Aerodactyl/Heavy Ball Amaura/ Friend Ball Lileep / Lure Ball Kabuto), if you want.