Trying to arrive at some sort of highly accurate single number is not a worthwhile experience. I'd tend to think of it as a range. You'd have to do a whole lot of research for what else is available. For example, here's something at Gruhn where the asking price is 8k. I don't claim any experience buying from Gruhn, but from what I've read, it would be a rare instance for someone to claim that they underpaid: ...a 1963 neck with "70's" other stuff, refin, relic'd, refret... https://guitars.com/inventory/ef9166-1970-fender-telecaster-body-1963-neck here's a '72 tele from CME; they're asking $2995, price drop from $3595...and they will look at offers... https://www.chicagomusicexchange.com/listing/fender-telecaster-ice-blue-metallic-refin-1972/26260932 Just a couple examples; sounds like you did just fine. FWIW, I think you've adopted a good way of thinking about it and so forth. Congrats! Looks muy wayno.