I think you'll need the u4035 saddle rearward top deck for the sv2 as the sv+8 chassis does not allow the saddle forward cell layout.
There was a slim/soft top deck for the sv+8 chassis, but I don't think they stock it anymore.
I still run an sv with the +8 chassis so I'll see if I can check my sv against an sv2 at the weekend for you
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