changing parts

[Stanleyism]

I play a Squier fretless jazz bass and I am kinda tired of fretless so I want to change out the neck because I love the body. What would be a good neck to buy and is there anything to changing the neck other than screwing and unscreewing? And what do you think of this neck? http://dallas.craigslist.org/msg/674270701.html
I also want to switch out my pickups for these http://cgi.ebay.com/EMG-J-Jazz-Bass-...QQcmdZViewItem but if you look at the pics, there are three knobs, and my bass has only two, will that be a problem?

[Richard89]

I think any regular Jazz neck would fit. A Fender MIM neck, for example, should work I think.

Are you really sure your bass has only two knobs?? All Squier Jazzes I have seen have 3 knobs. Almost every Jazz Bass have 3 knobs.