@samureyex - still not sure why you are looking at switching to SS. If you like the sound you are getting from your tube amp but are just looking to raise the quality a bit, you could consider upgrading the decoupling capacitors.
Your amp comes with pretty cheap CDE film caps (at least they aren't electrolytics). There are a LOT of options for caps that will likely improve (and certainly change) the sound.
I really like the copper foil caps from brands like Miflex and Jupiter, but you may not have adequate space for them - they are physically significantly larger than the CDE caps.
A reasonably priced and sized option is the VCAP ODAM. These are very clean sounding, but are also very neutral which may or may not be what you are looking for.
If you don't feel comfortable making this kind of modification yourself, I suspect you can find a local electronics repair shop that will do this for you at a modest cost.