Hi Watkykj,
I have a pcb for the AS5145 chip, it uses 1206 smd resistors and 0805 smd capacitors. The 10k resistor can be substituted for a 10K multiturn resistor like the AMC board if you want it adjustable. The PCB is 25mm square, I also have a 20mm square version as well.
Here is the 25mm version. It is in Sprint Layout 5.0 format.
Senetor.