Should work well. At the risk of being flamed I'd just use the tin yeast as well, I always had good results with that in my KnK days and often found that using so called "better" yeasts often took the kits "off track" from what they were designed to be, and didn't do a great deal for me until I got into AG.
The trick with the tin yeasts is to use two packets as the supplied packet is really stingy when it comes to yeast count, then to apply temperature control: under 20. This would be a good time to try a couple for the summer.
One suggestion, I don't think the Saaz is going to add a lot to the recipe, the megaswill drinkers aren't used to anything "floral", but a hint of a hop bite would be acceptable, especially if they are used to the likes of VB.
For a good clean bittering I'd go 8g only of Magnum for 40 min, increasing to maybe 10g in subsequent brews if you want to up the bittering.