As for the Magnum 340 it should be AccuGuide Ready as well, I would simply move a Nav & 372 between the two vehicles.

Also if you decide to go with AccuGuide in the 8010 with a AccuGuide Nav III Controller and 372. The Pro600 displays can go up to v27.x firmware, this is incompatible with the firmware in the Nav III Controller which starts at v9.10. You would need to go with a Pro700 for this to work.

As for the GFX750/XCN1050, they could steer the combines with EzPilot Pro or AutoPilot Motor Drive. They don't support Yield or Moisture Monitoring like a CFX750/FM750, FMX/FM1000 or the TMX2050/XCN2050 (FMX/FM1000 app) so yield and moisture needs to mapped via the Pro600/Pro700.