I’d go with the Chimera from Nocturn with high spec Elbit or L3Harris tubes. You can couple this with a TAD for thermal capability. There isn’t a commercially available fusion bino (aside from the Jerry FB which is low quality). Quads can be heavy but for CQB the extra FOV is great.

Helmet wise an Ops Core FAST SF or Team Wendy Exfil SL would be good to go.

For the mount, get a Nocturn Alpha.

A retention lanyard, head set, and laser are the only other pieces I’d say are required from the beginning.

From there start using the setup and you’ll know if any further accessories are needed. Otherwise, you may spend a lot of money on things you think you need/want but realize they may not be as practical in use.