Willing to stand corrected, but if the V sets fit in the Non Electric Stock Loading Gauge (allowing for pantographs till Lithgow), which allows them to travel pass Springwood, then its reasonable to assume that with pantographs lowered that they could be safley towed west and via the south to return to Sydney.
pantographs do have issues ... no damage if they pop up under the wires ( inside gauge ).. but are an issue in an unwired zones and workshop areas where the pantographs can be damaged or other damage can happen due to raised pantographs...( outside gauge )
would note - there is no real lock on the pantograph unless you tie then down .. will need a crew to tie down the pantographs in a safe location away from live wires ... and inspection before returning to service ...
I seem to recall reading that when a U set was steam hauled to Wallerawang and return on a tour back in the sixties (?) that there was a time delay because the pantographs "were tied down".
Is the power in the overhead currently even "switched on" from Mt Victoria to Lithgow anyway post bush fire damage? and / or from Springwood post landslip?
Are there not any un-wired sidings in Lithgow Yard?
No doubt if all the ducks were in a line, a decision was made, RailCorp 48's or private operator locos sent - WHS would suggest you cannot climb a ladder / use a scissor lift these days to do it...
Could the V sets not be pushed through a siding with elevated platforms in Lithgow Workshops after negotiation with the private operator? I mean after all were not the electric fleet serviced / stabled there ? 46 / 85 / 86? so the infrastructure should be in place still?
IIRC, & I don't know about the 85/86classes though, the interurbans that were stabled there along with the 46cl were not generally serviced there as such. Both had their own area where they were stabled. In the 46cl sidings all had their panto's dropped when stabled and all the sand boxes checked, that was done by a fuelman when not coaling/sanding steam loco's.
There were fitters and electricians at Lithgow Loco that were qualified to do certain repairs, but in general neither types really needed much done to them.
I could see no reason why they could not have been pushed into the service roads in the new facilities, also the old roundhouse was certainly usable as it had moveable platforms, and a couple of fixed ones where the diesels were serviced.