Hi Kath,
I have a lot of spare parts but I don´t know if I have any of these.
However I would sudjest that you bought new smurfs instead with the accessories. Because it is likely that you will not get the "correct" parts and then some collectors would not see them as genuine when they later maybe are sold. An lot of collectors take accessories and put them together with looose smurfs and that is why sometimes strange combinations appears.
In this case these smurfs are not that expensive and you would definatly gain in buying them complete instead.
For exaple the pizzas, hotdogs, hamburgers, apples etc are different between the variations of these. The tank for the fireman have different markings inside. I mean a hongkongmarked smurfs should have the accessories made in hongkong with that smurf. Also they sometimes painted them different in different countries sometimes.
There are also a lot of loose helmets to buy for astro, but try to get the complete astro instead with the correct helmet. I think there are maybe 4 variations of helmets and I have seen many smurfs where sellers added wrong helmet on the astro. And then they are passed between many collectors and taken for genuine ones.
So in these cases I would most definatly recommend you to buy new complete ones instead. There are some cases when you have rare items or expensive items where you miss some samller parts and then it is different. Then I would recommend you to try to find spare parts.