For years it was a postwar SF F3. I got one, although I managed to get the one version with a single motor, so I'd love to get a dual motor version.
the two add on cars for my 15" k-line broadway limited Madison set
the three add on cars and a B F3 unit for my WBB Canadian Pacific 15" passenger set
2534 silver bluff to complete my lionel postwar passenger set
a state of maine boxcar, preferably postwar or postwar copy (not picky on the details, but must have the thin letters)
a postwar lionel 11520 set (to replace the one my dad had as a kid)
and I could go on, would like a larger postwar loco like the 2046, and would love a k-line empire state express Hudson with matching 15" cars (want the k-line because they had the conventional only version)
although these are mostly wants, the must haves I've whittled down over the past year or so: 282R magnetic gantry crane, 246 (or 264?) forklift, staked log dump car, 2531 silver dawn I was missing, etc...