Bootstrap and ERP - Full project DropShipping - Long term Cooperation

Hi, currently we are under developing of a front end and back end project. We have some Warehouses partners in China, which we handle sourcing of products, picking, packing and shipments for all of our clients - our project is very similar to wiio.io and sourcinbox.com - our clients will connect their stores to our front end, and then process all its orders on our platform, a cross-border SAAS platform.
We do need this project done ASAP - so we'd like someone experienced on this field. Our suggestions:

BOOTSTRAP for FRONT END

ERP CROSS BORDER EXAMPLES for BACK END

- ECCANG.COM
- SUMAO.COM
- SUMOOL.COM
- TONGTOOL.COM
- DIANXIAOMI

We also needs to integrate to Alibaba/Aliexpress to use their shipping carriers for our clients - like WIIO.IO does.