Aurora 16's with ProTools questions

I'm a long time Nuendo user and have always taken advantage of the direct asio monitoring.  Works great with my 2 Aurora 16's

My current setup is

Aes16e with LS-ADAT board
2 Aurora 16's
Aurora #1 connects via AES to the AES16e
Aurora #2 connects via  LT-ADAT card to the LS-ADAT

This way I get all my i/o on the lynx mixer and I can route between Auroras with no trouble.

But....Now, people wish to use protools.

So what is my best solution for having easy access to BOTH my existing system, and a zero latency protools system like a PT-HD core card.  (without having to remove L-slot cards etc when switching between protools and nuendo sessions.)

One thought I had:
I could install an LT-HD card in Aurora#1, connect the AES outs of Aurora #2 to Aurora #1.  Will protools see all 32 analog ins and outs this way?  If so, I could use a pair of db25 switch boxes to switch between AES connections on Aurora #1.  (Switcher position "a" connects AES16e card to Aurora #1 AES I/O and for normal use.  Then switcher position "b" connects AES I/O of Aurora #2 to AES I/O of Aurora #1.

Would this work?  Or would both Aurora's need to have an LT-HD card?

Or, better yet, can you think of a better solution??  Even if it involves spending some money.  (Other than a 3rd Aurora!)

Thanks Mike. But then I wouldn't have the AES16e involved at all right? I love how well it works with my Nuendo setup... But the way you describe would be all through the Avid hd card, correct? Do those have decent ASIO drivers for my neundo setup?

OR would having the two Auroras linked with digilink cables and LT.-Hd's still allow me to see both auroras over AES to the AES16e card in 32channel mode? That would be awesome...

Thanks again for talking though this with me.

Thanks Mike.  That's great news.  Just to be sure, (for Nuendo sessions) with two LT-HD linked aurora's connected via AES on Aurora #1 to the AES16e card in 32 channel mode , will I be able to route between i/o of the two Auroras with direct asio monitoring.  For example, monitoring inputs 1-16 from aurora #1 on outputs 15/16 on Aurora#2 as I can with my current setup using the LS-ADAT and LT adat card?

Thanks again,
John

Hi Paul.  Thanks for your help.  I was  planning to have both the AES16e AND the Avid Native card.

Here's what I thought it would look like:
Two aurora's, linked to each other via LT-hd's
Aurora #1 then connects via LT-HD to the Avid native card for 32 i/o with Protools sessions
Aurora #1 also connects via AES to the AES16e for 32 i/o with nuendo sessions and asio direct monitor.

Is this possible?  (Can a pair of LT-HD linked auroras get all 32 i/o from both units to the AES16e card over AES from Aurora #1?)

That is correct.  Both Aurora's would have LT-HD cards.  They would be linked together via digilink cables.  And Aurora #1 would be digilinked to an Avid HD Native card. (No more Lt-ADAT or LS-ADAT)  Would that still give me access to the analog i/o on both Auroras for a total 32 analog i/o over AES via Aurora 1 to the AES16e for my Nuendo sessions?  (As well as accomplish my goal of having connectivity for an Avid Hd Native pcie card.)

Ah yes. Of course. Thanks for crushing my dreams, Paul! ;)
(Better now than later.)

I do have a second aes16 card, but then I lose my ability to route between Auroras in ASIO direct monitor or via the Lynx mixer... (Hence my current lt-Adat, LS-Adat configuration.