I would not change the pickups! Tele's, Strat's, and Pauls all have a distinctive sound and it has a great deal to do with the pickups. While you can find similar pickups one day you might regret it because you've lost that specific sound you had.
Instead why not buy another guitar that you can experiment on(if you can afford it) such as an ibanez or another strat. (why do you think most pro guitarists have so many guitars? ;)
I just hate changing out pickups bceause I'd rather be playing. You might end up finding some pickups you like but eventually you'll probably want that tele sound back(it's very unique) and forget where you put the pickups or found they got damaged or something. If you don't mind going through the trouble of changing them then go for it... If you want to have several distinct sounds have individual instruments on hand for it.
for example, you could have
Les Paul for Rock/Metal, Strat for Funk/Country Rhythm, Tele for Country Lead.
While the strat and tele have some overlap and it's not against the law to use a LP in country or a strat in metal, you'll probably feel a lot better when you can just grab the guitar you need instead of having to change pickups.
Obviously there are pickups that you can put in the tele to enhance it's sound but I wouldn't go as far as trying to changing the sound for a different style or whatever. I did that with my strat trying to make it more for rock and completely lost the clean strat sound(probably could get it back somewhat with EQ by why bother?).