anyone put 5" autometer gauges in a stock 69 camaro dash

[importkiller69ss]

i have the autometer console pod and i am looking to move my big in dash fuel gauge to a 2 1/16 console gauge. in its place i want to go with a 5" tach in the dash then match it up with a speedo. i have seen this done in the 67 and 68 camaros but not in a 69 due to the kinda square gauges. can anyone give me some insight on this subject