So I have finally found a cab for my Sunn 200s head. I have somehow found an Ampeg SVT-810E on sale for $450. I loved the one I played with an SVT head in a Guitar Center, and I know that if I choose to sell it for whatever reason I could probably make a profit. The question: Is there anything inherently wrong with running a ~60W tube head into 8x 10" speakers, besides the obvious volume and logistical hazards? It seems awfully underpowered. All advice welcome!