2 questions - "Run" only power source/fusible link install

I'd like to start by thanking everyone. I'm freshening up the butchered electrical in my car and I've got a lot of good info on these forums.

First question is where is a good "run" only source to power my electric choke? I had planned on installing a Voltmeter, Oil Pressure and Water Temp gauge as well. I was going to get the power for those from the 12 volt feed to the IVR, should that be suitable for the gauges?

Second question is about installing fusible links. I'm bypassing my ammeter using the info on the MAD electrical site. http://www.madelectrical.com/electricaltech/amp-gauges.shtml My question is how to attach the fusible link to the larger wire? For example attaching the 16 gauge fusible link to the two 10 gauge wires. I'm not really sure how to bridge the gap, as most butt connectors only support a size difference of 2 gauges.

Any and all help would be appreciated.