I am selling a DiMarzio Blaze 7 pickup for the neck position. It was installed in an Ibanez 7-string guitar I bought quite a few years ago. Works perfectly. Cable is still a bit more than 30 cm (almost 12 inches).
Price is 70 Euro + shipping within the EU which should me no more than another 10 Euro for most countries.
Let me know when you have any questions.