For the one your taking apart and redoing, or doing a complete new build?Ha! I spent my money I had for my tablet upgrade on my cob light parts lol
Speaking of the first mention, why redo it if it's a working light, and your replacing pretty much all the internals?
If I remember right you've got the drivers and cobs, all you'd be missing is heatsinks and a few frame pcs.
Imho I'd just build a complete second light and have extras, or more lights in the grow.
Give your new light a bigger footprint than the old one limits you to building in.
Or is there some other part of it, or consideration I'm missing that sways the decision?
Happy to help if you have questions about any of it.