Yes, the Temple Audio modules would allow what you wish to do.
You'd likely need:
(1) Temple Audio Dual XLR (M/M) (Search Online) (for Stereo XLR > FOH) (~ $99)
(1) Temple Audio Dual ¼" TS (Search Online) (for Dual I/O Guitar Inputs) (~ $99)
(1) Temple Audio Mini-Module Punched Plate MOD-MIPP (eBay) (~ $24)
(1) Neutrik NAUSB-W-B Reversible USB Genderchanger (Type A and B) D-Housing Chassis Connector (Amazon) (~ $15)
(1) Either 2x ¼" Dual TRS Locking Jacks, OR, 2x Temple Audio XLR (M) > ¼" TRS Jacks (with either 2x ¼" TRS Plug > XLR (F) Plug 2' Cable, OR 2x ¼" TRS Plug > ¼" TRS Plug 2' Cable, respectively) [Unsure that Temple makes individual XLR > ¼" jacks; best for Output 3 to stick with Dual ¼" TRS Jacks.]. (Amazon)
For Power, unless you plan on powering more than just the FM9, you'd need to find a power source that has at least one AC outlet service jack. What would connect to that would be a 3-prong AC plug > IEC (F) Plug 1.5' or 2' cable.
You would not be able to use one of the small side plate holes as a power access point, because the above cable attaches to your power strip and FM9. The power strip 3-prong plug would need to be fed through an access point somewhere aside the board, where a standard 3-prong AC extension cord would connect to your wall outlet. It's likely that you'd need to cut and solder the plug from your power strip to be able to feed through the side Temple Audio plate access point.
The downside of doing it this way involves needing to continually switch the power strip on/off, unless you feel safe just powering down your FM9 and additional effects manually, and keeping them connected.
Others have used power sources like Voodoo Labs (with one AC service jack and 9 VDC or greater power connectors) or other power sources for connecting additional pedals.
I personally kept mine simple with a Furman AC215A power/surge conditioner that has 2 AC outlets and 1 IEC (M) outlet. Amazon has a good deal on this just now, they're about $35 less than what I paid 4 months ago.
Also added a Temple Audio IEC AC Mains Micro Module:
https://www.sweetwater.com/store/detail/MOD-IEC--temple-audio-iec-ac-mains-micro-module. Doing so allows me to power on/off the Furman at side of board without needing to do any cut or soldering. The only cut was made to the Temple Audio board itself to widen the access hole that allowed a 2' IEC (F) / AC (M) cable to feed through. You could cut and solder the IEC/AC cable instead of widening the access hole; others have done this with good results.