I previously added some information about the S & S Engineering Digital Readouts to the Files Section "FRG-7 with non GAR-7 Digital Readouts" folder. There is presently an eBay seller with four of these unbuilt kits for sale at $40 each delivered. eBay # 372956780739. The only problem is that they don't come with cases.
I mention the case size in the files section. Alternatively the LED section could go in the existing dial window and the circuit board elsewhere in the FRG-7.
I have no relation to the seller.
73
Roger VE7LB