upgrades

i am upgrading my 55 to a 125 what should i use from 55 as far as what i already have. sand water ?? i also need to know if i should add new live sand and live rock because i wont have enough out of 55 or to use dead everything which is better and will cause a smaller cycle i have about 2 weeks...

I'm just wondering if anyone knows of any places that do custom canopies for nano cubes. I want to upgrade my lights while still trying to maintain a similar fit with the canopy and the tank. Any suggestions? Again I have a 24 gallon nano cube. Thanks!

I have a Aqua pod 24 I need to change lights, I know you can upgrade the lighting systems on them, I just can't remember the online site . Anyone know what the site is?