how do I know I am abeam a fix when there is no gps
Years since I flew from Prescott, and I never flew any approaches or holds there, but....
Looking at the US AIP plates you've got three options there. ILS, LOC/DME, or RNAV(GPS). The LOC/DME plate shows two DME options for CRADI; 16.4DME on I-PRC, which presumably is the one that's U/S; but you've also got 16DME on DRK, which I assume was working?
So presumably you'd be centred on I-PRC, using a DME on DRK, then initiate a rate 1 turn right when you get 16DME, then after 1 minute, you should be rolled out on 028 (+/- wind) and parallel the fix? A quick ruler on the chart would also give you a DME reading from DRK for the parallel point, although it's going to be near as dammit 16 looking at the chart geometry.
Or fly the RNAV procedure !
Will it come back to haunt you? No idea, but probably only if you go for a job with a particularly picky airline who want first time passes in everything. They exist, but only a few I understand.