Another thing I think you should consider is that the marketed wattage of a solid state combo is generally whatever it's rated for at minimum ohms, and so without an extension speaker you will be getting less power available. How much less depends on the circuit, but with Class D amps it's usually about half the power going from 4ohm to 8ohm.Probably 300-500 solid state is acceptable.
So, when considering your options, read the manuals/tech specs and be mindful of how much wattage you'll actually be getting. As others have said, it's a lot better to have a more powerful amp and turn down the volume knob than it is to have a less powerful amp that you're not getting enough headroom on. If you expect to be playing loud, 400W should be your minimum. As with everything, there can be exceptions. I have a 130W head/cab pair that gets loud enough that it surprises me. But I would rather be safe than end up finding out it's not enough volume. If you can, try amps out in shop. If they'll let you turn up (my local joint has a separate room for auditioning such gear), even better.
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