The original question, yes, it ought to do just fine.
The placement of the meter depends on what you are wanting to find out. If you want to know the SWR between radio and amplifier, put the meter between them and measure it. If you want to tune the antenna system for lowest SWR then put the tuner between the amplifier and the the tuner (or the radio and tuner if the amplifier is off). If you want to know the SWR of just the antenna system without the tuner in-line, then 'by-pass' the tuner or take it out of line.
An SWR meter compares the impedance behind it to the impedance in front of it (assuming that the impedance in front of it, the transmitter side, is 50 ohms). SWR meters are designed as 50 ohm instruments, which means that the input should also be 50 ohms. The output side, the antenna side, is assumed to be something other than 50 ohms.
- 'Doc