For me vindis work by being cheap and even then the spirit still means you have only one gun. They are the same price as pred with las sponsons and some spirit which would be able to chill with your troops rather than rush ahead.
90 pts gets you a laserback, 70 pts gets you typhoon both of which would be higher on the priorities than getting neophytes.
I think laserbacks are better than the rhino for
BT. The joy of
BT is not needing 10 man squads and 40 pts above a rhino for
TL cannon is a good price and fits your army.
Otherwise happy shooting

.