I don't think the armboards are interchangable between the Ovation and Debut, my recollection is that the Ovation's is more rectangular.
I will add that my Ovation is essentially a Debut V vacuum with the upgrades (as AJ told me at the time, the only differences would be the narrower plinth and the different, but equally effective, suspension), and the upgraded table is a better table than my stock Ovation was--much quieter background, a "bigger" sound, and no more problems with warped records (even though the Ovation's clamp was very effective).
If you have a chance to listen to one of the bigger Basis tables, you should do so. I think you might find your SOTA to be a little "livelier" sounding on rock, not sure if you'll prefer it one way or another.
I will add that my Ovation is essentially a Debut V vacuum with the upgrades (as AJ told me at the time, the only differences would be the narrower plinth and the different, but equally effective, suspension), and the upgraded table is a better table than my stock Ovation was--much quieter background, a "bigger" sound, and no more problems with warped records (even though the Ovation's clamp was very effective).
If you have a chance to listen to one of the bigger Basis tables, you should do so. I think you might find your SOTA to be a little "livelier" sounding on rock, not sure if you'll prefer it one way or another.