Sanity checking a simple network to replace one exit network

New place, trying to make sense of it.

We have 5 offices. Here's the current setup

Office	Employees	Internet	Routing	Extra info	Filesharing	Current Voice
LocationA	32 users	No internet	Out through Location B via 1gig VPLS	Server farm. Mostly people connecting occasionally back for files from B,C,E	Going to have small scale DFS to locationE	A separate digital non-ip phone system
LocationB	26 users	100/100mbps	VPLS exit point	DC / Fileserver	Have their own server for local access	A separate digital non-ip phone system
LocationC	17 users	No internet	Out through Location B via 1gig VPLS	Going to have a file server	Going to have their own local server	IP phones route back to LocationB via site to site
LocationD	8 users	10/10mbps	Site to Site VPN back to LocationB	no ISP in area, satelite dish pointed to nearest point.	Assumed little to no usage back to A	IP phones route back to LocationA via site to site (throughB?)
LocationE	8 users	100/100mbps	Site-to-site vpn back to LocationB.	Located in a different country.	Going to have a smallscale dfs replication to LocationA	Have their own separate cloud system

1gig vpls is up for renewal, phonesystem in A/B is outdated and want to switch to cloud voice. the VPLS is only seeing 100mbps traffic according to ISP.

We have Meraki MX64/MX65 in B, D and E. The MX64's have a max VPN throughput of 100mbps which is what our internet connections are so i don't see a point for going for anything larger than that.

We're currently getting numbers for a VeloCloud setup that is WAY more complicated than what we need it for. We really only need site-to-site VPNs and figure out how to correctly QOS the voice to be prioritized.

What I'm thinking getting internet connections for B(hopefully a 250mbps and C (100mbps), putting an MX84 in LocationA and an mx64 in locationC.