Cool, and that bike had thinner tubing so I'm almost 100% positive on getting the ISO/26.4 headset. thanks.

The cranks are steel and stuck to the BB, I've tried using the tie rod separator(pickle fork)+mallet technique, I've tried taking the nuts off and oiling the spindle and riding around to try and loosen the cranks. Nothing. They're totally fused, haha. The threads don't look perfect so I don't want to buy a crank puller only to strip the crank puller. Probably going to saw the cranks off, hence why I might need a new bottom bracket. Kinda just want all new stuff anyway.