I haven't forged any stainless but have done some mild steel.
Your project sounds simple enough, but 3/4" ss is pretty hefty stuff, hows your arm?
Most smiths use gas forges, (they're quick, clean and fast) but you could dust off that coal forge of yours. It's alot of fun.
Any way calc. your length heat and pound like hell, SS doesn't move as easy as MS. Split the end and do it again on the other end, then heat and bend to desired dia.
Use a 3# hammer, don't hit your work cold, and bending it will be the challenge.
I know this is an over simplification but it might help
Mark