Home Lab ethernet replacement for frame-relay switch

azaghul

In the olden days we'd all use a router with a few serial interfaces configured as a FR switch. As FR has passed its use-by date I'm looking for an metro-ethernet like alternative for the physical home lab.

• idea 1: I've picked up 3 x ME3400's along the way, as the telco's never come to decommission them, thinking of adding some ME3750's to act as PE devices?
• idea 2: Convert my FR switch (an old 3725 with 2 x NM-2FE2W) to a vrf device?

What are some affordable options that people are using? Looking for ideas...