125 and 350 might be pushing it. But for only one week, i'd go for it. If its too much, just come back down, that simple.
If you can keep all the gains you made on cycle, I think that would be awesome. To be totally honest, dont expect to keep gaining in PCT. But definitely keep yourself amped up! Don't get disappointed if you don't keep gaining, or you will lose your gains. If you do keep gaining, that excellent!
Keep your diet in check all through PCT, maybe even up your cals a little to feed you muscles what the chems were before.
Or grab some Anabeta to add into PCT.