my rack

**the instruo input/output modules are just place holders.

Okay, so I've started smallish (84hp rack) ... I can't seem to find the Mantis in stock anywhere, so I just got a HE Kit... sorry

It seems like the Arbhar can take audio levels for recording? However I would like to include some guitar pedals as sends/returns. I also need an output module?

Also, a filter? Unless I use the Pro2s awesome filters, but again more I/O S/R and insert effects ... any recommendation for the limited space I have left?