Just add about 100-150€ to get the strips using a service like Stackry or something similar...

I have the same plan and I'm looking for strips that are similar. I've found www.led-tech.de They have 50cm Alustripe with 98x Samsung LM301B LEDs that look alright. I personally don't care about reds but I could always add them later on. Finding aluminium extrusions is not an issue but how many wou...