It was Townsend Whelen who said: "Only accurate rifles are interesting".
Today, many people buy rifles that are not very accurate, but the more accurate the weapons you own, the more you might actually use them. My Golani was not very accurate, particularly with me as the operator and iron sights and my vision being what it is. I personally can't afford to blast away cases of ammo and doing that does not appeal to my concept of fiscal conservatism, so I have not shot mine a whole lot. I recently did add a red dot to the rail I added to the gas tube, the only problem is that using it required removing the rear peep sight since it blocked the view of the red dot. I didn't want to raise up the red dot, since this weapon has enough stuff to snag on things like the hooded front sight.
With the new build I am doing, I am going to try to eke every bit of accuracy out of the weapon possible, starting with a match barrel and de-coupling the gas system from the barrel (which will also makes the barrel easier to machine and the rifle to build). I am also going to see if I can fit a free floating handguard to remove yet another influence which has caused a lot of flyers on the different bolt guns I have bought. The trigger on mine seems pretty good for a semi auto, but I might do a Jard 2 stage on the new build.
I omitted the optics dovetail in the new receiver, since in my opinion the receivers are machined too skinny to begin with. So the question of mounting optics remains to be solved. Since my plan for the gas tube is to have it permanently attached to a plate that is sandwiched between barrel and receiver, I might be able to conjure up a mount to accept the AK "dogleg" optics rail which is retained in the rear by a new recoil spring catch. The dogleg rail replaces the dust cover.
Will it still be a Galil when I am done ? In my opinion, yes because it is still the same gas operated rotary bolt rifle. I have looked and looked at other gas operated guns, but the AR is out due to the awkward charging handle setup and DI system, the SIG 556 seemed to be better ergonomically, but there just seemed to be a LOT of quality issues. The Sig also had a folding stock, but that seemed to be one of the major quality sticking points. Not to mention, they seem to be hard to find and selling for over MSRP where ever I looked. There are a small number of manufacturers making upper receivers for AR's which have side charging handles including a FAL style non reciprocating one, but only in conjunction with the DI system. Rock River Arms released their PDS system, but demand has outstripped supply and they have again sold for well over MSRP. Rock River also will not sell any parts for its piston system so that You can build your own. They now have the 7.62x39 system, but again, only DI which is a killer if you shoot corrosive Yugo ammo, which I have quite a bit of.