Clutch and brake pedal assembly

Should I use the clutch and brake pedal assembly from a Mustang II

The easy answer is yes, that's what they were normally built with, but it depends on a few things.
Can you find a pedal assembly ? What tranny are you using ? What is your fabrication skill level ? Do you have a build manual ?
Here's a few previous threads on the subject.

[You must be registered and logged in to see this link.]

Yes I have the assembly manual, but I didn’t find the listing for the pedals assembly. I have located a mustang ii pedals assembly. Small block Ford and T5. Is it just the one assembly manual or are there additional publications?

There's kinda only one big manual. There is an early and a later one that includes the MX. About 3/4" thick. The pedal assembly is in section 3.
Go to the home page of this site and scroll down to "Data Base". You can download or view it there.