Seat alternatives

I need to put some seats in my 70 dart. The bench is absolutely destroyed and I haven't been able to find one locally and I can't find a set of factory bucket seat brackets or seats at a price I'm willing to pay
A bench is my preference but I have some APC racing seats i bought for a project and never used or some dodge/mitsubishi colt seats for the early eighties that I have had in the basement for a few decades.Has anyone used anything like this?
Does anyone have a good suggestion for an alternative seat or brackets that are a little easier to make fit the floor? Pics would be awesome.