[luke-44]

You probably need to spend a lot more time in the research phase. Check the search funtion on this site - you will be amazed how many times this subject has been covered in detail - one manufacturer vs another - example - SPF vs ERA, or Factory Five vs B&B etc, etc, etc. Also, check the manufacturers sites - there are probably +- 15 decent manufacturers of replicas you should fully acquaint yourself with before you will really know what you want...

Small block vs. big block - besides the basic differences in hp, expect to spend many more $$$ to do a bb - everything costs a LOT more on a bb. Within the world of bb's, there is also a hierachy of original side oilers, 428's, 429's, 460's, 390's, etc, etc...spending $25k on a bb motor alone is not unusual....

I don't think you get an SPF for 2X of an FFR - then again, some folks have built FFR's with price tags well into the mid 30's or even high 40's - don't get confused between price of admission numbers, and finished car numbers - do the research carefully.

Insurance is available through specialty insurers - not much of a hassle if you know where to go.

Good luck, luke-44