You have a mk3 with S1 roll bar set up etc dont you?

Go MTX!
No point at all in fitting a CTS box when its pretty easy to put it in your car?

CTS boxes range depending on what spec you want from what i understand, a stage 2+ for instance has shot peened gears which are take awhile to have done i understand.

You may be lucky though, I know MK on here got his box really really quick. Some people told me it takes up to 8 weeks though, all depends on work load.
But seriosuly get an MTX paul