aftermarket ECU, coil-on-plug setup, swap tach assy or SS III cluster? Options

[match220]

Ok..look through this thread if you want to see my past attempts.

http://www.6gc.net/forums/index.php?showto...chometer+signal

In short, my temp gauge and tach gauge don't work anymore. The options I've thought about are (1) getting SS III gauges off ebay for $150 and swapping the odo, or (2) getting a cluster from an early 00's toyota car that has coil-on-plug setup from the factory and putting that tach in with my gauge face (may not be accurate).

Option 1 seems more doable, but I don't want to spend the $150 on gauges (PLUS I don't know if my wire harness connects to the SS III gauges, can someone tell me???) If so, all I would need to do is connect the tach wire from my Autronic ecu and configure, correct? Hopefully the wire connectors aren't needed.
Option 2 seems cheaper if I can find working used gauges on ebay. I'm concerned about the tach signal not lining up with the correct numbers (since I would have the moving parts from the donor car and the gauge face from mine). The only other downside would be that I still have to fix my temp gauge.

My only questions are about the interchangeability of the SS III gauges with the celica (manual trans GT convertible). And if anyone knows what other toyota models with coil-on-plugs would be good candidates for using the RPM gauge in the celica.

[Smaay]

the 7th gen gauges will not work its a single piece and all digital. the 6th gen is still analog.

[match220]

the 7th gen gauges will not work its a single piece and all digital. the 6th gen is still analog.

that's good to know. I was thinking about buying a set but didn't want to because I didn't know. It looks like the 1MZ Solara, Avalon, and Camry with RPM gauges might work, but the RPM sweep is too spread out across the gauge (at least 200 degrees from 0 - 8k), and this is from the late 90's early 00's, the mid to late 00's Solaras have the same RPM sweep as the celica but they are most likely one circuit board like the 7th gen celica. All of the 5vz engines with COPs have long sweep RPM needles, except for Tundra gauges. The tundra looks like it has the same degree of sweep as the celica. Just from eye-balling it, the tundra has maybe 150 - 160 degrees sweep between 0 and 7k RPM. The celica has about the same between 0 and 7k, but also extends up to 8k. I'm not sure if these gauges are all one circuitboard or separate though and I don't know what other toyota would have a COP setup and an RPM needle with the same degrees of sweep that we need. I would be willing to buy a set of gauges to see if the price is right, or better yet find a broken set for cheap. Maybe I can find a good ebay listing that shows pictures of the front and back of the gauges, clear enough to tell if the circuit board is all one unit or separate. Also from what I can tell so far, there are 99 - 02 tundra gauges, and 03 - 04 gauges. Not sure what the difference is without comparing more. If anyone has access to some gauges that wouldn't mind pulling them out to check if it's all one circuitboard I will be very happy