Hi Renjith,
I bought the SoTM top of the line which has the reclocking option built in (there is still one step higher - external clock, but that is 5 grand...somewhere down the line maybe) so cannot comment on the improvement from standard to reclocking.
An LPS makes a great diff....I would say about 25-30% more detail and many less cringey moments. But not huge improvement in soundstage.
Elsewhere in my system I am using iFi switching power supply. Cheap and surprisingly great results. Available on line from headphone zone in Chennai
In my opinion the biggest bang for the buck in your system would be to add one more switch. The uptone Regen is simply masterful. Very reasonable price USD 640/- About the size of a paperback packed and anyone can simply carry it in. But gets v hot, so it needs to be kept isolated.
It would do all the things the better power would do and make a nice improvement in soundstage. It has very high quality clocks built in. I would compare it favourably with the top of the line SOTM switch - one third the price.