For Poison Street Parcels, a suitable shunting loco is required. Luckily, Roco have me covered with their NS 600 (nee BR D3/8A, TOPS class 11).
It needs Anglicising by removal of some NS-specific detail and replacing, plus a rework of a couple of areas that (imho) Roco didn’t get quite right.
It's a Mk1 Roco, so has the over-wide cranks, forcing the rods out about 1mm too far either side, but I'm leaving those well alone and will accept the compromise.
NS lights removed and holes plugged with plastic rod, cut flush.

Superfluous handrail and step on cabside removed. Ladders off.
I wasn’t convinced by Roco’s under-sized rad grille, so removed it and fabricated a new one from microstrip.

I also widened the roof exhaust panel.

Roco’s buffers are quite long, these have been replaced with MJTs 4mm 1ft8in Self-contained wagon buffers and I’ve swapped out the couplings for Kadee #158s in #242 draft boxes, slid into the orginal coupler mounts.
Decals on order from Railtec, it’ll be finished as Bescot’s 12112 in grotty green/wasps.
