Thanks for your replies!
I did not know that you could get a five string E to C set. Did you buy a six string set and use just the higher five strings?
Yes. Thomastic Infelds are not commonly available over here, so I ordered them from bassemporium.com.
Regarding the pickup, I really like the sound I get out of it. Compared to the other Excels, this one was growlier and punchier. When I first saw it, I expected that it would sound somewhat thin and harsh, but that wasn't the case at all.
As a fretless, it also seems to have more mwaah than others.