Have a very VERY old wall oven (Roper 2062110 - avocado green), looking to replace. Need to confirm cutout depth before buying new one. Seems to only have a 23" depth but even the smallest new ones I see are at least 23 1/2". I need to find the actual cutout measurements (hard to get an actual measurement without removing) of this oven to see if 23 1/2" will fit or if I need to rebuild my kitchen to accommodate. Thanks.