SIP Conversion Fork

I have ordered a SIP conversion fork but now I am not sure if I’ve ordered the right one. They are not in stock at the moment so hopefully I will be able to change my order before it’s too late!

I have a 1974 150S and order the fork for a VBB. But I think the headset bolt on a VBB attaches at the side of the headset, whereas on my scooter the bolt faces forwards.

Should I have ordered Sprint/Rally fork instead?