HTGEEK i tried to elude to it in my post, it will be fine, just get some long bolts.
i would recommend 2 2" (1/4 20) thread bolts, with 4 nuts, and 4 washers. Thats what i used to get the angle correct. It kind of depends on where you are going to put your center? are you going to have it on top of a 5' TV like me? or a stand like Jake? the geometry of the vp-180 appears to be the same as the 150, so if your 150 upside down, with the angle side down and it works, then you should be able to put the 180 in the same orientation as the 150 and be fine. however, with the 180 having the treaded holes, you can use some bolts, to get a "more exact" angle like i needed to do.