Stretching the tail will make that tail hit first even worse. Are you using full flaps for landing? You can either drop the leading edge of the horizontal stab down or put a trim tab on the elevator and tweak it till she flys hands off at cruise. A couple turns around the pattern will get you dialed in. What is your CG at? Get it back around 16 or 18" and the plane will fly MUCH better and land SLOWER.
The very first thing you should be doing at altitude is figuring out the numbers on your plane. There are so many factors that go into the differences of the indicated airspeed from plane to the next that my numbers are pretty much worthless to you. YOU need to figure out at what speed YOUR plane stalls at. Do this at altitude then you wont have to worry about it anymore. Stall recovery is really simple in these planes, just relax back pressure and your flying again.
If it was me I would use the speed wing ribs at the full wing length. The speed wing profile gets you more top end and looses little if any on the bottom end if built full length. Duplicating the ribs is pretty easy so you will have enough to go full length.
It is a very rudder dependent airplane and it will make you use your feet. If your used to flying a spam can you will sling the ball all over the place the first hour or two then you will get it figured out. Lead turns with the rudder going both in and out of the turns. If you push the stick over you better be pushing same rudder. Other than that these are very docile planes.
The less you put in it the better it will perform. I hate the 1.75" of twist that was in my avid, it left a lot on the table on both ends of the envelope. I would not build a wing with more than .500" washout in it.
The fabric used is the same same. Might have a different stamp on it but its the same type of fabric. I recently used the stewarts glue and eco fill for the first time and it was great to work with, then shot the top coat with polytone to match the existing paint. The IA is the one that had me do it that way in his hangar during an annual on the pacer. Worked fine and he does it all the time.
FWIW, independent shippers are begging for haul back loads and the prices for freight is stupid cheap right now. My brother is having an engine for his grader delivered to my house from Washington or Oregon for 350 bucks..
had that happen twice. Both times the back up electric pump saved my ass. running along fat dumb and happy then silence. Deafening silence. hit the boost pump and primer and fired right back up. Caught it a couple times when the fuel flow meter started dropping and hit the boost pump and things went back to normal. Were you running with both tanks on?