1/2T frontend on 3/4T truck

[kcjones]

My plan has changed, I'm wondering if anyone can pass on some knowledge here:

I'm going for a static 3.5"/5" drop now, but seeing that I need a-arms as my 3/4's won't work with all the cool kits, I'm going to buy a-arms.

The question is, should I get some tubulars, and are there any that will let me run a coil now, but upgrade to bags easily later? I don't want to go bags now as I can't afford it.

basically, any tube a-arms out there that work with coils, but will make upgrade to bags easy?

Thanks for any help!