Which Quicksilver to buy

I'm going back to tubes. I used to have Dynaco monoblocks, now I've got Monarchys. I need to return to tubes. I'm going with some used Quicksilver gear. I love the liquidity of tubes, but I'm wondering if I'll miss the taught bass of ss. The M80 amps are a good choice for me as I want a cage. I asked if the V4's came with cages as an option and was told no. I don't know if cages are available for the M80's, 90's or 100wpc Quicksilver amps? Would I likeley be happier with the KT88 tubes over the EL34's?
Any ideas before I commit?
Thanks,
David