As I understand it clantech is more common - but only amongst high-budget units. When the new rounds of wars kicked off all the militaries were pretty small, and militia units had to improvise like crazy to get units. Thus a couple of really high-end units supported by "anything that moves and can carry a gun".
But in this case, given that it doesn't seem like top-of-the-line high-budget manufacturers, I'd say mostly standard fusion engines and a limited supply of the latest weapons. Probably no clantech at all.
Maybe like this?
Liberator
Mass: 50 tons
Tech Base: Inner Sphere
Motive Type: Hovercraft
Rules Level: Tournament Legal
Era: Clan Invasion
Tech Rating/Era Availability: E/X-X-E-A
Production Year: 3070
Cost: 2 942 500 C-Bills
Battle Value: 945
Power Plant: 165 Fusion Engine
Cruise Speed: 86,4 km/h
Flanking Speed: 129,6 km/h
Armor: Ferro-Fibrous
Armament:
1 LB 5-X AC
1 ER Medium Laser
2 MML-3s
1 ER Small Laser
1 Anti-Missile System
1 Unknown CASE
Manufacturer:
Primary Factory:
Communications System:
Targeting and Tracking System:
================================================================================
Equipment Type Rating Mass
--------------------------------------------------------------------------------
Internal Structure: Standard 25 points 5,00
Engine: Fusion Engine 165 9,00
Cruise MP: 8
Flank MP: 12
Heat Sinks: Single Heat Sink 10 0,00
Control Equipment: 2,50
Lift Equipment: 5,00
Turret: 1,00
Armor: Ferro-Fibrous AV - 143 8,00
Armor
Factor
Front 39
Left/Right 31/31
Turret 21
Rear 21
================================================================================
Equipment Location Heat Spaces Mass
--------------------------------------------------------------------------------
2 MML-3s FR 4 2 3,00
Anti-Missile System T 1 1 0,50
LB 5-X AC T 1 1 8,00
ER Medium Laser T 5 1 1,00
ER Small Laser T 2 1 0,50
CASE BD - 1 0,50
@MML-3 (LRM) (40) BD - 0 1,00
@MML-3 (SRM) (33) BD - 0 1,00
@Anti-Missile System (12) BD - 0 1,00
@LB 5-X (Cluster) (20) BD - 0 1,00
@LB 5-X (Slug) (20) BD - 0 1,00
BattleForce Statistics
MV S (+0) M (+2) L (+4) E (+6) Wt. Ov Armor: 5 Points: 9
8h 2 2 1 0 2 0 Structure: 3
Special Abilities: AMS, CASE, TUR(2/2/1)