I would skip the Archer c2600 in favour of the more modern ipq8065+qca9984 based Netgear r7800, ZyXEL NBG6817 or Askey RAC2V1K / RT4230W REV6, especially with meshing in mind (the ipq8064+qca9980 in the c2600 is an early wave2 chipset, which hasn't seen much love from QCA).
…or take the risk and opportunity of the rt3200.