I still have an original in the box , i wore it once 40 yrs ago and decided it was heavy and claustrophobic.
I have a new Bell open face helmet, looks the part but i had a huge crash in it back in April , i was out cold for a number of minutes . I am still feeling the effects of that crash enough to have stopped competitive riding . No physical injuries to speak of but it really screwed my head , the polystyrene has cracked inside and the helmet did its job to a point .
However it is a relatively cheap Helmet built to a price , i imagine the replica moto 3 will be the same .
I prefer open face helmets always have done . I used to buy Shoei RJ open face helmets but they changed the shape and i dont like the new ones .
I wish i was wearing my Shoei when i crashed though .
My point is they might look cool and meet stds but they will probably be built to a much lower spec than a decent helmet .
You only got one head , and mine is currently Fuct . it might have been a different story in an Arai or Shoei 
Buy one for show but dont risk your canister by racing in a budget built (probably not budget priced ) helmet
Geez Bill sounds like ya had a real buster mate, all the best, hope you are feeling better soon
, I had my first & last mountain bike race a couple of years back, was wearing a normal foam type treadly skid lid, went over the hangers, smacked my scone & was out for the count for a bit,off with the faries, forked me up too, reckon I am still not right, fork the MTB's to bloody dangerous, back to motosickles for me
