Broadleaf Commerce Discussion Forums

I am interested in customizing an Open Source e-commerce solution for a very specific application. The final solution has to support all of the following (in addition to lots of functionality found in every e-commerce solution) :
1) Multi-tenancy
2) Supplier association with products
3) Generation of supplier orders based upon consolidation of customer orders (possibly across multiple tenants)
4) Customized process flow for item #3
5) Ability for customer to modify orders up until item #3 occurs (really just involves customization of order processing flow - I think)
6) Ability to set minimum order sizes by Supplier and by tenant

I am looking for feedback as to whether Broadleaf would be a good starting point for this type of customization. I have only begun to look at Broadleaf, but felt it would be worthwhile to ask for advice early in the search rather than spending tons of time on a futile effort.

We currently do not have an out-of-the-box solution for a "Supplier" concept, although we implemented sites with this customization without too much headache. Customizing checkout flows, adding items etc is something that is definitely configurable (http://docs.broadleafcommerce.org/curre ... ities.html).

Multi-tenancy is something that we have definitely spent some time thinking through and are working on getting into the framework. I would encourage you to email info@broadleafcommerce.org with your specific requirements surrounding this and we can see if we match up.