Advice needed for doing own print run

Hi Guys

I am looking to do a print run for in the region of 50k pages,

5000 order forms
5000 A3 sales letter folded to A4 and made into an 10 page A4 booklet

Could a RICOH MP C6000 PROFESSIONAL handle that type of run once a month? Or perhaps a Konica BizOp? I did work out that to do that at 55ppm it would take 909 minutes or 15 hours so was wondering if the printer could handle say 5 hour runs per day or do it all in one hit? Or even those types of printers would no way be able to run for that much without breaking down?

I can of course outsource this work but we are looking to bring it in house if we get the correct machine for the job without breaking our bank

Best regards
mark