Specialised exploration ship to me means:
* Best in class jump range by a large margin.
* Lots of small slots for exploration and endurance gear (scanners, SRVs, AFMU, aerial reconnaissance (fighter - maybe one day we can have an actual recon flyer with instruments).
* Little or no weapon hardpoints (maybe a token class 1) and a minimal shield.
* No large cargo bays (no large slots).
* Nice cockpit visibility.
Basically it should trade excellent jump range and self-sufficiency for *horrible* combat and trade efficiency.
The asp and keelback kind of fit the bill except the former is too good at combat and both are reasonable traders, plus for a specialist explorer yeah, throw stones at me, it should best the anaconda in jump range. Give me a reason to put Annie in the shed otherwise it's never going to happen.
Not on the list: Manoeuvrability. Come on next you'll want a jacuzzi filled with people and/or robots you find attractive