Until you need to use other tips, a 929 is a reasonable iron.
On the other hand, lots of people buy more expensive stations and never use anything other than a conical or chisel, lol.
OP, if you want to drag solder, get a different iron. Check out the tip selection in advance. And just to put in my 2 cents, a 2.5 to 3 mm CF (tin face only bevel tip) is better than spoon, in general. Solid gold. Hakko T18 tip CF3 is my gold standard to compare to other drag solder tips.
Plato makes spoon tips for 900M style which also fit on Hakko iron that take T18 tips.
Hakko 937 clone is the cheapest iron I know of for which you can get a good selection of drag solder tips (T18/900M).
Creative DIY solution? Hmm.. If you can machine copper/brass shims, you could convert your iron to take other tips, maybe.
I have tried to make a regular bevel tip into tin-face-only by coating the outside of it with powder coat. (same generic iron/tips you use, I think. They come in chisel, conical, and bevel, only, right?) That was a total fail. If you had the equipment to electroplate nickel and chrome, I suppose it might be possible to make a CF tip, yourself.