Iron sights on dreamline or similar?

I'm looking for a high power, accurate pcp with iron sights to use as a biathlon trainer. I know there are biathlon guns out there, but they tend to be 177 cal, relatively low power, and I'm not quite ready to go all in on the biathlon game. If there were a 22 cal biathlon gun pushing 900fps, I'd consider it. I think a path to this goal would be putting irons on some other pcp. It should be relatively light and adjustable length of pull, e.g. AR stock (adjustable competition stock would be ok). It should be side lever, 10-shot (or more) in 22 cal. The dreamline fits this bill, but has no iron sight option. Has anyone put irons on a dreamline or similar format pcp? Any other ideas?
 
Well not on an FX, but you’ll get the idea:

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I designed this little part so that it is clamped onto the shroud by the front sight. Works great!