[lime-users] TP-Link Archer C20 v4 and TL-WR840Nv5(ES) - any experience?

On Monday night through Wednesday we have a training that includes setting up a 400 meter link (near Puyo, Ecuador, UTC-5). We have purchased a TP-Link Archer C20 v4. We plan to connect it via Nanostation2 and NanoLoco2 with a WR840Nv5(ES) that belongs to a small ISP (why this arrangement? combo of cheapest new and used hardware that I thought would work). The 840N only has 4MB RAM, which I understand is not really recommended for LibreMesh. Neither of the routers are on the list of devices at http://chef.libremesh.org/ for LibreMesh, but they are on the list for OpenWrt. The most similar device by name on the LibreMesh list is the Archer C20i. If we can LibreMesh-ify the ISPs 840N router in a way that it can easily be returned to factory firmware, maybe we will do that. If we can LibreMesh-ify the Archer C20 without a high probability of bricking it, we will do that (we don't have money in the budget for a replacement this week). I can use lime-sdk cooker instead of Chef -- I have done this before to test a new translation file. Suggestions on how to proceed? Here's the C20v4 data: https://openwrt.org/toh/hwdata/tp-link/tp-link_archer_c20_ac750_v4 Supported Current Rel: snapshot Unsupported Functions: WiFi 5GHz Target: ramips Subtarget: mt76x8 Package architecture: mipsel_24kc Bootloader: U-Boot CPU: MediaTek MT7628AN 8 MB flash, 64 MB RAM Compare to C20i: https://openwrt.org/toh/hwdata/tp-link/tp-link_archer_c20i_ac750_v1 Supported Current Rel: 17.01.4 Unsupported Functions: WiFi 5GHz Target: ramips Subtarget: mt7620 Package architecture: mipsel_24kc Bootloader: U-Boot CPU: MediaTek MT7620A 8 MB flash, 64 MB RAM TL-WR840N v5 (ES) -- belongs to the ISP https://wikidevi.com/wiki/TP-LINK_TL-WR840N_v5 CPU1: MediaTek MT7628N (575 MHz) FLA1: 4 MiB (GigaDevice GD25Q32B) RAM1: 64 MiB (ESMT M14D5121632A) ~ Pato