I’m not sure what your industry is specifically but I would think these “credit apps” are essentially leads. Even if a prospective abandons an application, that data needs to be stored for future campaigns or lead generation. Perhaps you’re looking for something light weight. If you are inclined to use NS for just the CRM piece, there are still configurations for CRM that could potentially impact other NS configurations for actual sales ops and revenue functions , specifically items. For NS CRM to work, you need at least the items configured (even if it’s temporary) so they can be put on an opportunity object. In SFDC vanilla, you do not need an item.
I presume you’ve already purchased NS? What is the causing the implementation delay? Feel free to DM me if you care to share/brainstorm.