MQ1 Valve Questions

[turpidporpoise]

I picked up what I was told was a midblocked Outkast with an MQ2 valve and Eblade 2 frame but upon inspection it turns out that it has a silver MQ1 valve in it. I know the MQ2 valves used to pull quite the asking price but I'm wondering if the MQ1 is valued similarly?

This particular MQ1 still holds air and cycles but nothing lasts forever so I'm also wondering if these old MQ1s have any parts or seals that can not be obtained these days? I don't want something that could end up being a brick at some point in time.

My initial response to the seller was asking for a refund but I'm assuming he already spent the money I sent him as he's trying very hard to find any other way to fix this.

[Knuckle Dragger]

You can always install a standard poppet valve and hammer should the MQ fail. You’ll have to get a clapper solenoid and spacer for the frame, but it’ll work the way it used to.

I have no idea what the first MQ is worth or what the differences are between the first and second versions are or their resale values.