Gauge cluster switch?

Hey guys

I am planning to di Speedy's LED conversion to my gauge cluster. Long story short; I am pretty busy with school and work, I won't have time to do this conversion in 1 day. I am using my car almost everyday.

Is it possible to buy another cluster and install it in the car during the time I am working on the other? The thing is I want to know at what speeding I am going. that's it.

What do you guys have to suggest me??

Thanks!!