few questions re radiators
 

I plan on replacing my radiator along with some other stuff as it's leaking when I get my taxes done figuring I get enough back so are is my questions:

1) I thought I saw there was an issue with the Spectra radiators but after doing some searching I don't come up with anything so is there an issue with these?

2) What is a good radiator to go with aside from maybe the Spectra

3) I plan on doing the trans lines at the same time as they are some what rusted at the radiator and rather not chance any problems and wondered how much atf will be needed? I know draining the trans and doing the filter takes 3.5 qts so how much more will I need to do it all at once? mainly I don't want to buy to much atf and have a bunch sitting around or end up returning it and I don't want to keep running to the parts store if I don't have enough