Hi Collin,
Based on your screenshots (in specific screenshot 3) it seems you have not mapped all the other CMODELS to ADO types (semantic types) archipelago detected in your Solr. The fact that you have a larger list there means the Solr connection worked, but mapping can not be skipped because at the step archipelago does not know yet what Compounds it might find and which CMODELs the children of those might have.Even if you are sure the current collection you have setup for fetching won't have any of those, you still need to map them. The list might be long, but once you do it once, archipelago will remember your choices for a next time *(for the same user) Give that a try. The documentation for that plugin has more info.
https://docs.archipelago.nyc/1.4.0/I7solrImporter/Small note: You don't need to bring the MODS or the RELS-EXT data streams (except if you really need to have XML files around). all the rest-ext data that is present (and useful if you decide to process it during the actual ingest, via a template of course) will be fetched from Solr anyways. BY default, most MODS data is already in Solr and will be fetched too. Useful data streams might be the HOCR (which will make archipelago prefer that one in case you have the semantic type configured to be OCRED and might safe you some time ... or not ... depends really)
Let us know how that goes
Best
Diego