10G-capable customer router recommendations?

[sotnickd-nanog at ddv.com (David Sotnick)]

Hello masters of the Internet,

I was recently asked to set up networking at a VIP's home where he has
Comcast "Gigabit Pro" service, which is delivered on a 10G-SR MM port on a
Comcast-supplied Juniper ACX-2100 router.

Which customer router would you suggest for such a setup? It needs to do
IPv4 NAT, DHCP, IPv4+IPv6 routing and have a decent L4 firewall (that also
supports IPv6).

The customer pays for "2Gb" service (Comcast caps this at 2G+10% = 2.2Gbps)
and would like to get what he pays for (*cough*) by having the ability to
stream two 1Gbps streams (or at least achieve > 1.0Gbps).

I'm tempted to get another ACX-2100 and do a 4x1Gb LACP port-channel to the
customer switch, or replace the AV-integrator-installed Cisco SG300-52P
(Cisco switch with e.g. an EX-3300 with 10Gb uplinks).

Thanks in advance for your suggestions.

-Dave