The keyboard you posted is also known as a TKL (tenkeyless) if you didn't know that already since that might help with your searches.
I haven't seen too many custom builds for them myself but I am pretty new myself. If you're looking for something cheap you can check out the MagicForce 82. It's not quite the same format you posted but is more compact and from what I gather seems to be good value for the money. Unfortunately the right shift key is not the standard size so if you wanted custom keycaps in the future then it's not a good choice.
I know Ducky, Filco, and Varmilo all have TKL keyboards with MX Blues so you can take a look at those. I don't think they're particularly cheap though but not sure what your budget is.
You also didn't say whether you care about backlighting and what colors so your choices will probably narrow down depending on your answer to that.