Fuge question

[dsn112]

Hey all, I am building a sump fuge this weekend and have a question.

I originally planned on using a 30" long 29g tank to build my fuge, and had planned on doing skimmer-fuge-return.

My stand is 36" long and If I use that design, I will have nowhere to keep a resevoir for an ato.

If I use a 20 high with the same design would that work.

I am using a tunze 9010 skimmer which only needs about 5x5 footprint. The return will be an ehiem 1260. I should still be able to have a good size fuge with my 3 baffles after skimmer and one after fuge.

The tank is a 70g tech.

What do you think?