I would say not wait as long as it's a close.
1) it's not like this set is targeting any kind of sacred palette. If you were making something in for example 'Carbon' or 'Penumbra' colours you would have a lot more expectation to nail the exact colours because people spend a lot on matching cases, artisans, cables etc. For this, if the colours don't match the renders 100% it's not the end of the world as long as they're reasonably close.
2) the closer it gets to the 180 day cut-off for Paypal disputes the more likely you are to see non delivery disputes / refund claims coming through. Especially considering original quoted timeline was around 2 months.