Been toying with how to get this to work, while I feel this is a good start, maybe things can be done better:

CCS w/ 2x Meltagun, Regimental Standard, Chimera 140
CCS w/ 2x Meltagun, Regimental Standard, Chimera 140

Platoon (625)
PCS w/ 3x Meltagun, Chimera 115
Infantry Squad w/ Autocannon, Chimera 115
Infantry Squad w/ Autocannon, Chimera 115
SWS w/ 3x Meltagun 65
SWS w/ 3x Meltagun 65
HWS w/ 3x Autocannon 75
HWS w/ 3x Autocannon 75

Platoon (625)
PCS w/ 3x Meltagun, Chimera 115
Infantry Squad w/ Autocannon, Chimera 115
Infantry Squad w/ Autocannon, Chimera 115
SWS w/ 3x Meltagun 65
SWS w/ 3x Meltagun 65
HWS w/ 3x Autocannon 75
HWS w/ 3x Autocannon 75

Leman Russ Executioner w/ Plasma Sponsons 230
Leman Russ Executioner w/ Plasma Sponsons 230
Total: 1990

Some quick totals:
8x Chimera
6x Mobile scoring units
6-8x Deployment zone scoring units
22x Meltaguns
16x Autocannons
8-10x Plasma Cannons (depending on movement)

Description:
What you have here is an army that can split in a few ways. The Chimeras can advance either all together or in groups of four. Alternatively, they can all sit back and contribute to the shooting if you simply outgun them (which is also benefitted by the Regimental Standards and addition of Bring it Down! orders). Other than that, you have the ability to bubble-wrap all or parts of your army. You have the ability to rove out forward with your scoring units as needed.

*Special note: Before anyone mentions it, I guess it was unclear in other forums, the SWS will be taking the Chimeras of the Infantry Squads, and the Infantry Squads will deploy on foot to be a buffer around my HWS units and the Russes.

Weaknesses:
I'm still not sure if the limiting range can be an issue. The majority of the shooting is at the 36" range. Autocannons go out to 48" and the Meltaguns are 6-12" to get effective. I have very little ability to get out there and reach a unit at a distance as I like to with my Stormtroopers.