Time for some advices. Bkps Swaps - MM X PK X..?!?

[WITH FULL DISTORTION]

ill completely change all my amps tubes, as soon as they get a little older .
q:)
and im also wishing to swap my speakers too
trade them for 2 vintage 30 and 2 greenbacks.
or, 2 greenbacks and 2 g12 century.
Q:P