ATL Well Cell for street car

Any thoughts on using the ATL well cell in a street car? It looks like an incredibly simple option for placing a 12 gallon fuel cell in the spare tire well. I'm trying to reduce the amount of fab work I have to do. Does anyone see any issues with going this route?this will be for a 69 Dart street car. Thanks

http://www.summitracing.com/parts/abt-171110/overview/