Check timber grow lights website. They have clu048 kits with several configurations.
I use a dimmable fixture of two hlg240c 1400b with 10 clu048 per square meter and It rocks hard, but everything between 30 and 50w per square feet does the job.
Take your time ti learn the DIY basics and...
Cobkits has good prices but expensive shipping to europe (+40usd) plus customs. If you need a large quantity it can be ok.
From Europe i buy from elpro (mean Well drivers and mechatronics heatsinks), tme, and eBay exportestonia for citizen clu048 6 gen cobs.