I would suggest getting the Pro package (at $129), and then during the Black Friday sale, upgrade to Ultra. That will give you some time to see if BiaB fits your needs.

I just checked, and noticed that the Roland FP30 only accepts Bluetooth MIDI. The FP60 and FP90 also accept Bluetooth audio. So, if you're planning to stream the output from BiaB to the FP30, be aware of that. The Ultra packages, with all of the RealTracks, might very well be overkill.

Can you tell us EXACTLY how you'd like to use the output from BiaB with your FP30? That will help us give a better answer.
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PC: i9, 32 GB, 7 TB; Win10 Pro x64; PreSonus Studio 1810c; BiaB 2021 Ultra
Studio One 5 Pro; Notion 6; Melodyne 5 Studio; SpectraLayers Pro 7; Guitar Pro 7
PreSonus FaderPort Classic; Nektar P6; M-Audio BX8 D2; Beyerdynamic DT 880 Pro