You can definitely do this yourself without paying $5/ac forever - especially since you’re already running 20/20 + Raven.

If you want something simpler than “full SMS Advanced” to start, GeoPard is worth a look: upload yield + soil tests + topo + imagery (multi-layer), build zones, and create seed/fert prescriptions with either basic rules or equations (targets, removal, credits, etc.). Exports to common formats so you can push to your displays (or via API to JD/CNH, and AGCO integration coming soon).

Free trial to test it (250 ac), and there’s a cheap pay-as-you-go plan if you only make a few maps per season.

After season profit maps, trial analytics is available.