clio

I have been experiencing engine hesitation/missing between approx 3 - 4,000 rpm during the first 5 minutes of driving each day.
My first ever CEL came up and the resulting code was a series of 7 (short) blinks. I believe this is the throttle position sensor (TPS).
After a search the engine hesitation issues seem to be common with TPS so this would seem to confirm my suspicion.

As Honda only sells the TPS inclusive of the throttle body this is $$$.

I see some people have used an Omnipower unit. Which model is this?

Any suggestions or should I go for a used unit? Some things like these I prefer not to buy used.