two tanks transfered to one

[54seaweed]

I have a 37g and a 40g
looking to transfer everything over
the new tank is 90g I'm adding new sub strait
I want to add almost all the live rock from the 2 tanks
leaving a few in other tank till I can move live stock
I intend on transferring slow so I don't get a big swing
I'm also using alot of the existing equipment till I add a sump
I don't anticipate any issues

I plan on using the 40g for the sump
I will use the 2 cheap skimmers till I can afford a better skimmer
does it sound like I missed anything ?

 

[54seaweed]

I will be starting the transfer as soon as the tree comes down on sun
so any good advise would be appreciated
I just want a smooth transformation
should I add all the inverts last giving tank a chance to reestablish a good bio load
and would fish be ok with almost no rock in existing tanks till I get them all transferred over
I plan on doing it over a 2 week period not to over load to fast giving new tank a chance to catch up