Unfortunately I do not have an external function rom device, but I can provide you with measurements at the expansion port pins, using an internal function rom. The only difference would be that I will be measuring the /FROM1 signal instead of /ROML or /ROMH. Would that be of use to you? I can measure 16 signals at once. Also, the analyzer software runs only in Windows and is a 300MB download (I don't think screenshots will be enough for a good analysis).
Here is the datafile. I took one sample of The Servant ROM displaying the menu. I also included the 2MHz signal from the VIC-IIe. All signals are measured at the expansion port, except for 2MHz and /FROM1. My system is PAL, so Phi2 is 985248 Hz. To use use the datafile, download the zeroplus lap-c analyzer software (direct link to zip):