Check my plasma speaker schematics.

[Abdul Ahad]

I am going to make a plasma speaker for my school science fair project.I found this schematic after lot of search that seems pretty reliable to me and plus easier for me to make.If any of you can point out whether the this circuit is reliable enough to make for my science fair in which it'll have to work for at least 1 hour over a period of 4-5 hours.About its over heating I'll keep some extra MOSFETs handy and will heat sink to a large heat sink touch with a water reservoir and a fan salvaged from my old PC supply ventilating it, in this way I'll be able to control heat perhaps I won't even run it for more than 2 minutes.

Guide me I have at least 15 days to make it which includes the shipping time of the components as I'll be ordering them online.