This was a 'quickie' project to get a running P4 locomotive for my 'Weston Super Mare' layout. Converted according to the EM Gauge Society Manual Sheet and not too difficult to do and runs reasonably well with my Compspeed / Gaugemaster walkabout controllers. I had a spare Bachmann 57XX body and decided to make it an 8750 as someone had given me a K's 8750 kit. For the identity I settled on 3650, the preserved 8750 with the GWS in Didcot as this was shedded at Bristol around 1960. So I took the cab sides and bunker back from the kit, the cab roof and coal from a spare Airfix auto tank body and here is the result ...

this is the source parts laid out before construction began ...

here are the chassis bits during the chassis conversion, making false frames to stick to the side of the Bachmann chassis block to reduce the number of washers on the axles. I used Gibson wheels (Conversion pack with 3mm axles). Balance weights were cut from plasticard.

this is the body part way through - first coat of paint and as you can see a big gap between cab and tanks ...

and now attached to the chassis but before transfers and number plates

and finally in service with crests (late BR) and number plates.