Welcome Back!
New characters can now start with approx. 2m SP (between buddy codes and starter packs), with monthly points events adding another 500k to 1m, so nearing your 4m in Trade, and this character has no standings to assist with trade. Those factors considered, you could possibly get 3.5 to 4.2b, if someone were in the market specifically for a trade character at the time of your listing.
Let me read up on the rules for selling, might need to transfer assets to my main char etc. But could be tempted, give me a few hours to sort it out. Being Xmas Day and all, might be tomorrow before it’s ready!