Dennis: Welcome to the asylum!
65mph is about what I fly paterns as well. The book number for stall speed is 51 mph, but remember, she is a 60 year old lady and the a/s system may be a little out. I like to do a stall wings level after take off at a safe altitude with a new airplane to see what the number is before putting too much conficence in the number on the dial during a landing. Look for stall warning as well, it should be about 5 mph before the stall.
For takeoff, I usually look at the a/s indicator after I have picked up a bit of speed to make sure it is alive on the roll, abort if it is not, assuming I am at my home strip with 4K feet of asphault. Sometimes the little cover gets stuck. Once I had water freeze in the lines and split the tubing and the a/s was fubar. Climb out is 70 mph in the book but I usually get max VSI indicator a little slower.
You should check the static RPM as well. It depends on the prop, but the book number for the McCauley 1A170 76 inch prop (Unspecified pitch) is 2320 RPM. I usually get about 125 rpm carb heat drop at 1800 rpm on run up. Old air boxes are notorius for leaking so you may not be getting full factory new drop.
I like three point landing best myself, but the airplane does good wheel landings as well. For a tail dragger, the Sedan is pretty docile as long as you don't abuse her.
I have the C145 engine and a 76 inch prop pitched at 49 inches. At almost 100 mph, I burn about 8.8 gallons per hour. The stock airplane does not have a header tank, and has fairly long tanks spanwise with no outboard fuel pickup. This means that if you are in a slip, like on landing with a crosswind, the fuel can go to the outboard end of the tank, if you are low on gas, the motor can quit, even if you have some gas in the tank. Burl has a mod that adds a header tank to help this issue, but I don't have it. I did a sloppy turn once entering downwind after a long flight and it got rather quiet. I still had 5 gallons usable at the time. I got the ball centered, pumped the throttle, and all was fine.
There is an AD on the bladder tanks that requires a preflight inspection of the fuel vent and/or a mod to the system. You can read about it on Burl’s web site in the helps and hints section number 31. If you still have the stock system with the bladder tanks and don’t have the alternate under wing vent system, make sure you keep the vent clear. It comes out of the belly and should have a little airfoil thing behind it.
The Seadan is a great airplane and very easy to fly and maintain. It really does fly like an oversize champ. Have Fun!!!