Need reccomendations, have fairly large budget

[curious aardvark]

oohh $50,000.

we need to think about this.
How clean and shiny do the printed containers need to be ?

Reason being for that money you can get an sls printer so you'd get super smooth prints, maybe not that large a build volume and fast they're not.

For hollow and fast and that kind of size - realistically your best bet is probably going to be fdm.
Have a chat with the 3dp platform folks. https://3dplatform.com/
Huge printers, well within your price range and thoroughly great people to deal with.

The other people to have a chat with are Hyrel . The hydra 645 would be large enough. Not sure how they match up on print speed, versaitlity definitely. Hyrels can print with just about anything, not just filament :-)
Hmm, webiste claims around 50mm/s which is nowhere fast enough. shame. Still worth a chat.

From what you've said I'd probably go for the 300 series workbench with hfe300 and hfe900 extruders.
Yes this'll run you up to around the $40,000 mark.

Another approach would be to go for a large delta: wasp is probably the best around for the larger beasts: http://www.wasp3d.net/products/delta-4070/
http://www.aniwaa.com/product/3d-pri...ltawasp-40-70/
That model would be well under $10,000

One thing to consider is whether these containers need to be water tight - unless you print slow and careful - they won't be.

How fast would you consider to be fast ?

And something else you should consider is a decent desktop scanner setup. This can save you hours of designing, assuming you don't get supplied with 3d printer ready cad files, which you most likely won't.
Had a decent hands on play with 'scan in a box' recently. Very impressive, good detail and can scan large or small items: https://www.scaninabox.com/
https://www.scaninabox.com/product-details/scan-in-a-box-fx.html
Price is very reasonable, under $3000 and quite frankly there's nothing else on the market that can touch this setup for less than around $20,000.

The wasp and scanner would bring you in around the $10,000 mark plus tax, postage etc.
The scanner and 3dp 300 would be nearer the top end of the budget. Did I mention the 3dp build volume is 1x1x0.5 Metres ! :-)

There are a lot of other machines around that would meet the build volume - but most likely not print speed.

Personally I'd go for the scanner and wasp. It's a setup that will more than do the job, affordable and you get kudos for not blowing the whole budget and still delivering on spec :-)