My take on it, is that you'd be better off going with repop parts or finding nice individual pieces as you need them. Once you get that parts car, you're stuck with what you bought after you harvest the few good parts remaining. In that shape (notice how ratted out the dash pad is), I'd be willing to bet the interior pieces might not be worth it. I went in halfsies on a couple of parts cars with a pal, and I think I wound up spending more trying to refurbish the handful of parts I thought I could use, before tossing them aside and just buying repops (fenders, front & rear valances, trunk lid - I spent $300 on my half of the parts car investment, $400 to get all of those items including my original hood soda blasted only to find bondo and more damage than I wanted to repair, and wound up just buying repop sheet metal instead). I think the only things I really "scored" from the parts cars were the C-pillar plastic trim pieces (I was missing one, which I later found under my back seat), and both quarter window roll-up regulators from the 'coupe. So yeah - spent WAY more than I should've on a gamble that the parts I needed were usable (but then again, I absolutely suck at gambling... which is why I avoid the casinos and "poker night with the guys" like the plague
).
I tried to save those pieces you mentioned from mine, but it was just easier to get the repop stuff and go from there. Mine also came with the center gauges, so it was just a matter of replacing the plastics. However, if yours does not have the center gauges, you'll need to get a wiring harness from a car that has the gauges, in order to 'keep it factory.' If you just want the gauges, you can get a gauge panel easy enough, install aftermarket or even refurbished factory gauges and run the new wiring accordingly. That might be an easier way to go, rather than completely replacing a wiring harness (that you have no idea if it's in workable condition or not). I'd also bought a tach cluster and wiring harness from another member years ago (before I knew anything about anything) when I was in my 'just start collecting parts' mode. I was refurbishing the new harness when I discovered that the donor car didn't have the center gauges or some of the other options my car had - aside from the tachometer, it was from a lesser optioned car (I'd laid it all out and compared where everything plugged in - it was missing quite a few connectors). It was also from a '73... and mine's a '71... so, I had just bought a tach cluster and wiring harness I couldn't use. Lesson learned... and passed on.
There are also upholstery kits available for the seats that re-use your seat frames (that's how I did mine) - or you can get factory-looking aftermarket seats as well (TMI Products, is who I'm thinking of). They're easy enough to do (although, I ain't gonna lie - it's hard work and I have a new respect for those who do upholstery).
Center consoles show up here and there, and there is a repop available (albeit $600+). I got mine from ebay for $150 and repaired/repainted it.
I guess the big thing to consider when thinking about getting a parts car is how bad do you really want the parts, are they in better shape than what you have, and would it be cheaper than repops or buying individual pieces outright? Because at the end of the day, you'll be stuck with a pile of ugly, unusable leftovers that you'll just have to throw away at some point.
Don't get me wrong - I'm not telling you not to get it... just to make sure it's worth it. $1500 is a chunk of change to pay for [potentially] less than $1500 worth of usable parts, is all I'm saying.
On a slightly different note: be advised also, that you'll want to preserve the seat platforms from your car (if possible) when you take on the floor pans, since the only replacements available are for coupes/'verts, which are a few inches taller, and will make a difference in the seating position - especially for taller drivers/passengers.
Sorry for the novel - hope this helps.
