I might add that if you wanted to go back to the simplicity of a single box, and given that judging by your other posts you have a Naim NAC72, there is an option to upgrade the phono cards in the NAC72 with replacement phono cards. These, to my ears significantly out perform the stock Naim cards, though others will be along soon to tell you that there is magic in the Naim cards that nothing can ever improve on, blessed by JV and so sacred
It is easy to spend others money, and easy to end up recommending your own choices to others, but depending on your own priorties and ears, you may favour keeping the Sugden, or you may wish to reduce box count and go back to the original Naim cards and sound (if they are still around somewhere? Would be NA322 for MM or NA323 for MC), or you might wish to reduce box count and try third party replacement cards like RSL or NJ who both do "improved" versions of the original Naim MM and MC cards. All these cards are an easy drop in replacement, no skills required other than the ability to undo the feet, slip the NAC72 case off, and plug in the cards.
EDIT: The current version of the
Sugden is c.
£2.4k so not to be discarded lightly, equally should fetch some decent money second hand if surplus to requirements!