Is Having an Independent Pedal Necessary for Practicing Bach's Trio Sonatas (SOPP788)

Welcome to Secrets of Organ Playing Podcast No. 788! Today's question was sent by Nicolo and he writes:Dear Vidas,I'm an avid listener of your podcast and always enjoy the conversations that you and Ausra have.I'm a beginner located in Colorado (USA) looking to invest in a small practice organ like this residence organ that Bedient makes. I think you know this builder well, so I wanted to get your opinion on this configuration as a practice instrument.Is having an independent pedal necessary for practicing trio sonatas? This organ requires the pedals to be coupled with one of the manuals.Also, are manual couplers useful in a practice instrument or not strictly necessary if one accepts the limited tonal palette?Thank you,NicoloHope you will enjoy our conversation!