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Replacement for a Honeywell V55155A 1100 Modusnap?

in Gas Heating
The thermostatic modulation gas control valve on my old AO Smith boiler is leaking gas in 2 locations. Rather that attempt a repair, I'd like to replace it. Problem is Honeywell stopped production of the V55155 line in 2000. There are a few 1110's on Ebay for $160 but non-returnable with no warranty. My boiler contractor will install one he has for $320 part + labor warranted. Does anyone know if there is a functional equivalent replacement available new?
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Comments
I'd like to replace it, surely this function is not obsolete? I'm not sure where to look. The boiler contractor that removed the leaking modulator said that he still has new ones in boxes and will install it for $320 part + $150-@200 labor. I've found supposedly new ones on EBA selling for $160 in the box, but I'd be concerned they were reclaimed.
Are you aware of a current modulating gas control valve that could be installed in place of an old 5155A 1110 replacement? My boiler guy has a new one in the box, but it's 15-20 years old (he stocked up before Honeywell obsoleted it, smart move)....I'd be concerned about the condition of the gasket that separates the 2 valve halves....that's where my unit failed.
I'm an old Boiler guy from S.F. I have baseboard heat with an old AO Smith Boiler and the same Honeywell V5155A Modusnap Gas Valve that Scott had. System is efficient and works great.
My son lives up the bay from you in Hayward. He has the same setup as me. Unfortunately, his Modusnap Valve died and since then his gas bills have been thru the roof.
Do you know someone who has a Honeywell V5155A Modusnap Gas Valve? The ones on EBAY are now through the roof in price. If not, do you have any suggestions? All I can find are European Combination Valves that are not legal in U.S.