I would like a pillar in between my Vixen SXG HAL 130 Tripod and my Vixen Porta II mount. I have a 102mm refractor. I’ve looked at the Vixen half-pillar but it doesn’t look like it will do the job. Can anyone tell me what pieces I need to buy? The point of the pillar is so I can keep the scope out of the way of the tripod at zenith, and to keep the legs of the tripod raised as little as possible to prevent the mount from moving around.