VPI Scout

Hi all I bought a VPI scout here on the gon with no motor or tone arm , and trying to set it up is going to be a project ..

I bought a motor for it and it's a Hurst/300 need to make a pod for it ..

I pickup a rega rb300 they say that it's a drop in for it i just don't see it since the shaft of the tonearm is short and the nut dosn't make it to tighten the arm . do i need to buy anything to make it work ...

Here am thinking this was going to be a easy project and now am stump ..

I also would like the dimension of the motor housing so I can make one or should I just buy the housing from VPI ..

So any help is appreciated and many thanks in advance to all ...