Really I was just looking for a lower parts kit, although I appreciate the tips on slides and barrels and hope someone else can use them.
Earlier in the day I ordered a slide completion kit directly from Anderson Manufacturing. A number of vendors sell the Anderson kit but don't have stock, so we will see how long it takes to get direct from Anderson. I am hoping they don't screw me as I have since found another option. (Anderson have G17 and G19 kits - I just needed the former)
Slide Parts Kit Fits Glock 17 Gen 1-3
andersonmanufacturing.com
In the end I ordered a Cross Armory lower kit from Tacdom an ebay vendor my friend has used before, they have a 100% (47239) feedback rating but that said they are charging $10 more than the Cross Armory outfit does for the kit themselves (when they have them).
P80 - PF940V2 /PF940C. Slide Lock Spring for (G17/ PF940v2 & G19/ PF940C). CROSS ARMORY. Colors are proprietary to this manufacturer. Check with your armorer first. HIGH QUALITY Kit for a New Build or Rebuild.
www.ebay.com
Barrels were mentioned here, I do not need one but I know Wing Tactical has some although selection is limited and prices are at a premium.
Searching for barrels for Glock and other popular handgun brands? Check out Wing Tactical’s collection of firearm components—quality is our top priority.
www.wingtactical.com