However I know I'm missing some detail and it has me contemplating a phono stage and I'm just wondering would
I am just wondering how you know (& it seems you know for sure) that you are missing details in the music? "Details" in music is not necessarily a good thing - it could be distortion masquerading as details.
The loss in "details" could be due to any number of things such as distortion in your front-end components & distortion from your loudspeaker.
I'm just wondering would I lose what I have going to solid state in order to get detail or is it possible to keep this spacious floating sort of presentation with something like a Sutherland 20/20 for example
The other assumption I read here is that it's your belief that only s.s. gear can give you details & that tubed equipment is incapable of doing so. It's a very wrong assumption.... Medium-priced tube gear is very capable of musical & satisfying playback. The key is to find the least distorting equipment at your price-point for every component in the signal chain. Tedious work, for sure, but the end result is worth it....