Keep the Trebuchets together and add a Catapult. Keep the Vindicators together and add a BJ-3 Blackjack. That’s a good start to a Fire Company. Then add a third lance of fast jumpers with TAG and/or NARC to direct the fire of the LRM lance. PPC lance can do double duty adding direct fire support and provide close-in protection for the LRM lance. And they all jump!
A Lance: 1 Archer, 2 Trebs, 1 Centie (A Regulan Fire Lance)B Lance: 2 Vindicators, 1 Raven, 1 TrebC Lance: 1 Shadow Hawk, 1 Vindicator, 1 Black Jack, and 1 Spider (I've seen a lance like this somewhere....)