Asking for clarification

I am confused on the upgrade cost. Is it correct that to upgrade to the Journeyman 48 inch x rail is $850.00 and the upgrade to the X50 Woodworker (beefier but still 32.250 X rail) is $450.00? Is that right? I have to make a decision and I’m trying to make sure I have this correct. Thanks!

From what I understand the prices listed for just the rails are for someone with a 1F (or one on order) that include a discount for returning your old 35mm rail.

Right, I have one nearing shipping date and was trying to decide whether to upgrade or not. The $850.00 option takes it to a 48 inch z while the $450.00 option remains at a 32.250, if I correctly understand it.