You won't need the curl function from the 422/425 since you already have it on the 1430. But you will need the locking mechanism from the 422/425 to lock in the implements.
I'd call PowerTrac and get prices for:
- the Quick Attach plate, locking tabs and Quick Attach cylinder and hoses for a 422/425.
- a blank female Quick Attach plate for a 1430.
Then I'd use some stand-offs and weld the 422/425 quick attach system to the front of the female 1430 plate, being sure to leave enough room for the cylinder to operate, and enough room to allow you to hook under the lips of the 422/425 attachments.
With all that said, how many implements from the 422/425 series are you planning on using with the 1430?
If it's only a few, it may be a lot cheaper to just have some 1430 female plates fabbed up and attached to the 422/425 implements.