It would actually save him more like 32 points, since then he could drop a Trueborn body as well - those points could go towards some Night Shields/FFs on the Ravager, which would help it out also.
I definitely agree that you should try to place a Blaster into that Warrior squad, because currently all they're doing is serving as a way to buy a Venom, and for 15 more points you turn them into a legit threat themselves.
If you don't like Lances (or lack the models) another option is to drop one Trueborn w. Blaster, stick the Blaster on the Warriors, still have three blasters with the Trueborn, and use the extra points, again, to upgrade the Ravager - multiple paths to a similar goal.
Also, if you want to use the Trueborn as a lance based sniper unit, I'd probably start them outside the Venom. Leave them sniping from a tall ruin or something and let the Venom run around blazing away at troops, and free to move without hurting the lance output.