I think you mean the Duplo DBM150T (the 'T' signifies the trimmer module is fitted). We have one, with a Morgana 104 Squarefold on the end and it is a great little combination with minimal footprint. There's the benefit of it being futureproofed in that if your volumes significantly increase, a DSF-2200 auto feeder or a set of collator towers can be added later. I should probably mention, we use silk stock or uncoated on ours, having not tried gloss through it.
The Morgana BM60 is the most basic booklet maker, in that it folds and staples, but does not do a fore-edge trim, so this needs to be done offline on the guillotine. Good luck with that on more than a couple of booklets at a time! Without a squarefold, they'll slip forward off the back stop.
If space is not a consideration (it very much is for us), you'd be better picking up a refurbished full size booklet maker with trimmer and squarefold modules. They're almost as large as a small digital press. If you take this route, make sure you source a machine that was designed to be offline. There's more on the s/h market that were designed to be inline and using them offline is not always simple, where there can be dependency on the software on the print engine for them to fully function. That's why they're offered so cheap.
I'm not familiar with the MBM.