Be tempted to spend enough to get a good quality temperature controlled iron with adjustable temperature setting,anything less is probably false economy. Well worth making sure replacement bits will still be obtainable in many yearstime (which means a well-known brand).
Maybe a used WES51? If you could find someone willing to part with it...
I recommend Hakko FX-888.Buy once, keep a lifetime.I still have a Weller station that I bought in 1978.
I have an Xtronics 4040 soldering iron/hot air stationwww.xtronicusa.com/home/?ecwid_product_id=9238594Got it on e-bay for ~$109, works very well for thru hole & SMD rework.