Tray vacuum sealer with gas flushing

I want to buy a tray vacuum sealer machine (semi-auto or auto) with gas flushing for packing ostrich meat (fillet, steak, mince and cube shape).
Please send the lowest FOB price. The needed tray sizes are around 20*15 and 20*25 cm.
Since the volume of meat for daily packing is around 200 kg, high speed system is not necessary.