Howdy lads, I don't know shit about cabinets or most gear that isn't guitars so I figured this would be a good place to ask. Someone I know wants to sell me two vertical Mesa Rectifier 2x12 cabs (old school 90's ones I'll attach pics) that appear to be 140w each. I'm currently using a Mesa Triple Rectifier 150w solo head (older one that doesn't have switchable wattage) and thought it'd be kind of neat. I'll either get these or a standard Mesa Rectifier 4x12 cabinet but I wanted to make sure that: 1. I can even run them both parallel / as one/mono and that it won't be an issue with either the head or cabs 2. Will it affect my tone and if so, how? 3. Would it make sense, be beneficial or how would it affect my tone if I were to run them one each as stereo instead of parallel/mono together Here are the pics: As a P.S. is $500 a fair price for the set? Thanks in advance.