I ordered that custom rack from Bob's, but when I got to the shop, figured out that some of the stock rubber parts don't fit so well on it, and also that the OEM rack is still available from the fiche for around $140 if i remember correctly ($30 cheaper than the Bob's copy). Now there's a no brainer.
I ordered the seat from Siebenrock, and after eight months of waiting, it finally got here. FWIW it's much softer than my stock dual seat. It's nice for a short ride, but for long days I think I may prefer the density of the original. Now thinking about getting it customized.... But the rack space is nice.