Coolant Expansion Leak - OK to Drive?

[Tailwind]

+1 on comments relating to replacement. My PO installed an aftermarket tank and I had to replace it. I used a genuine from Pelican, and it is a PITA bc of the piping thru the bulkhead. I asked a well qualified friend to look at some articles and he charged me $250 plus a extension hose clamp pliers (you need this is you're DIY'ing).
We replaced the level sensor at the same time, as you need to do it with the tank out.