Solid state or tube what to do??

My system is Arcam A85 DIVA, Quad 12L speakers, NAD 521i CDP, Audioquest interconnects, and Type 4 Speaker cables. I purchased the Arcam 7 months ago but now have the itch to go tube. I have the option of trading my Arcam for a Cayin TA-30 that is fully modded except for the Auricaps. Also included are 2 sets of Svetlana tubes (one pair already on board) and the others to sweeten the deal. Am I making a bad move here by doing a straight trade or should I take the chance. I have no way of auditioning the Cayin as the owner is several hundred miles away. Being new to tube, what would I be losing by giving up my Arcam and/or gaining by getting the Cayin. Also, the little Quads are 6ohms. Could this cause a problem for the Cayin?