Welcome aboard brother. I too was looking at the 335 before I bought the ISF, but there is no comparison...especially with standard options and fit and finish.
I'm in Arlington as well. I'll keep my eyes open for a Merc Metallic F, although it shouldnt be hard to spot, they're pretty rare around here.
I had to read your signature about 4 times to make sure my 25/20 vision is still good........but, damn......you have 2 ???Congrats and welcome. I'm sure you'll have a ton of fun in you F. Everyday I drive mine I'm so happy I bought it.