Don’t know anything about the Solar Scout so cannot comment.
The Lunt 60 I have (bf 1200) is very good and I would recommend it.
I have also owned three Quarks, one of which was excellent and I kinda miss it. (I believe the quality control problems have been sorted out now so might be another option, albeit they still have temperature considerations.)
My first dedicated solar scope was a Coronado SolarMax 40 and I loved it. However, I got it during a solar maximum phase and that, plus being new to solar viewing then, may have played a part in my delight with the scope. Hard to quantify that now.
To sum up, the Lunt will be a good investment and whichever way you go, enjoy the bright side 😎😎