I think it's worth remembering that the comparison of sound is based on all other things being equal. If this will be you main guitar then you can build your sound around that particular pickup exploiting the subtle differences, if you're mixing with other guitars it will all become relative especially in comparison to full on humbuckers.
I could not decide what to pick for my strat and essentially justified it by reasoning I needed the Formvar wire of the '62 to be authentic to 1960 reference guitars like this;
http://www.youtube.com/watch?v=xiqW5cTCxlwhttp://www.youtube.com/watch?v=SWuKQmizGaA&feature=channelDoes my guitar sound exactly like this - no, because there are too many other factors at play; but does it have the same general dynamic feel (to me) - yes.
The other thing to consider is how much the amp affects the sound. I'm not familiar with the Port City Twelve but does it have a Fender-type basic sound? I can see from their site that it's quite basic - volume and tone so you're quite for limited for tone shaping; even more so without a master volume. The speaker also plays a huge part too. If you have a speaker for overdrive tones it might sound not quite right for cleans.
The clips on Port City website seem to focus on overdrive so I suspect this is the amps best sound. I not saying change the amp, just be aware of it's influence on the underlying sound, not just what tubes it uses but how the tone circuits work, how the pre-amp is stacked. I for one cannot get a good clean strat sound out of many Vox or Marshall, but other's seem to sound fine - but that's also down to the way my fingers work with the strings.
After many, many years of not understanding what I was looking for I eventually realized the sound in my head was Fender Blackface-type sound. It's easy these days with Youtube to help you 'decide' -in 1990 when I started I had no reference except for the records I listened too with very little info available on how the sound was made (and no Internet Forums to speculate). I think I get close enough with a Mesa Express 5:25; which although not spot on, is incredible flexible - and very portable. Still thinking about changing the speaker though... or getting a 2x12... or another amp :D
I recall that Jimi used Fender Twin's for clean sounds in the studio; far too loud for home use, but that amp tends to set the benchmark for how strat's should sound in many people's heads.
Anyway, part of the fun of the guitar is the continual hunt for better/different tone - I'm never satisfied for more than a couple of days. Of course, if Tim's going to start bringing out more sets then it only builds the temptation to get another guitar to put them in. :D