Well, the Sharks had started selling some stuff by that time BUT Joust, Heimdall and SM1s were not being sold quite yet (or invented in some cases) though mechs were . . . a iffy case could be made IMO.
As for the price vs capability discussion . . . I will use your company Kovax. Based on the price you quoted I am assuming you do not want the '58 Pegasus but rather the SW model. Your company would IMO be a good cavalry company for a defending militia- to sally out of firebases or screen militia formations of mech & heavy armor. But the way it seemed to me was that this was planned for a offensive use, or at least a very aggressive defense. Which IMO means the debate about cost rolls around to the debate about fusion engines vs ICE, since to use the Pegasus as the example the engine difference is the greatest cost mark up. Electronics would be the second factor, the BAP & ECM being 200k each- I will note the 'fluff' electronics in the SW Pegasus has no c-bills cost associated but it should depending on what you determine it to do.
So IMO it comes down to endurance and capabilities . . . the ICE squadron is not going to be able to operate long behind enemy lines unless you also send tankers- never mind ammo carriers. Your SW squadron is also not going to have BAP to detect any ambushes during their patrols, ECM to try to mask their presence or during combat to provide sensor ghosts. The SW squadron IS likely to run into electronics which they will not be able to match. If they try to remain at range from a set of targets it means they will scatter 5 point hits. If they close where most of their weapons are effective (6 hexes & under IMO) they they will be at short range for most ACs (RAC, LBX, Ultras), ERPPCs, ERLLs and LRMs that most mech lances will have for combating other mechs. Your SW cavalry squadron might get in one strike, but then how many tanks will they lose? how many will be to damaged to immediately move on to another target? how long will they be sitting in the vehicle repair bays until they can go out again?
The reason I chose what I did was because if the 4 supply hovers and scouts on hoverbikes were added to the squadron's tail then IMO you have a force that can operate for quite a long time behind enemy lines since- they do not need fuel, they will likely be able to make 1 or 2 strikes against mechs without reloading (16 rounds on Regs, 12 on Fulcrums), and they are fast enough (9/14 slowest) to keep away from what can kill them* but armed enough to kill anything that can catch them. If they came across a soft-target- convoy/HQ/repair station/supply depot- then they can fire it up using the lasers on everything but the Regulators. With 44 tons of supplies able to be hauled along, techs driving the Peg Haulers, and each having a lift hoist, they should be able to do some repairs besides just regular reloading.
* If the opposing commander puts together a ASF/CF/VTOL Hunter-Killer force together to hunt down the cavalry squadron, they lack AA defenses . . . but isn't that a bit of a win on its own since those same forces are not on the frontlines?
The initial price will be more, but like the usual discussion involving FE vs ICE vehicles, you get more bang for your buck on a fusion engine vehicle.