'36 Ford Firewall & Spot Welds

After spinning mine and other peoples wheels looking for a roadster I have come to the conclusion it ain't gonna happen anytime soon so in order to have a ride ready by spring I am going ahead with my coupe build.
Will be starting by cutting out the stock firewall but want to do it cleanly so what tool do you guys like to cut out spot welds?
After I get the firewall out I will need an after market replacement so who makes a nice '36 firewall, has them in stock and hopefully is a HAMBER?
Will be installing a baby hemi and even though I have seen them installed in a stock firewall without cutting they look a little to far forward for my liking. Thanks in advance...................

 

Eastwood has spotweld drill bits.
<input id="gwProxy" type="hidden"><!--Session data--><input onclick="jsCall();" id="jsProxy" type="hidden">

 

HF has spot weld cutters also. *****in' has firewalls in 3" and 5" recess.