Sorry I have not bothered reading all that, but the needles you can get on ebay at the moment for $3.30 delivered. Once the sump is flooded it takes a lot of clearing it and until you get it all out you will not get it to start. Keep at it keep pulling it with the plug out and eventually it will clear. The fact you have got a murmer /attempt to fire means it will run but you may not get it to run without a new needle and the reason the thing is flooded is because the existing needles are rubbish.
Here's the needles amazing value, I would suggest everybody who is playing with these Victas to jump on these.
https://www.ebay.com.au/itm/Carbure...nes-G4-LM-carbies-CR03404A/123195961298?
