chas, with all due respect... OP shows a single manual keyboard. Not exactly a full B3 in form.

You don't get a 'few organ patches' with the BK-9. It's a TOTALLY different beast to the BK-7m. The organ section of the BK-9 is a FULL Hammond sim, complete with a choice of five different amp and Leslie models, a choice of 50's, 60's and 70's vib/cho characteristics, control over the percussion regeneration, basically everything you get with a FULL Hammond clone. You also get the full drawbar complement (don't get that with some of the clones!), and nice little details like control over the spread of the Leslie effect (hate having full L&R Leslie outputs go through a PA with speakers 20' apart!), mike position and closeness, etc., etc..

Nothing could be further from the BK-7m, when it comes to Hammond!

The thing is, given that the OP already is fine with arrangers, and isn't looking for a full 2 manual, full pedal organ, having it in a keyboard that throws in an arranger for free (say compared to the price of a KeyB Solo!), and has sufficient keys to be able to do a very playable range for upper AND lower manuals, it is a worthy contender.

After all, no-one is saying you HAVE to use the arranger stuff at all! In fact, plug in some MIDI pedals, use the drums ONLY from the arranger section, you have everything you need to be able to copy what you posted recently, all in the one piece of gear.

If the OP is willing to look at a single manual piece of kit, why not look at one that does EVERYTHING well?