We skipped the crib.
Son #1 transitioned to a big-boy platform bed with a slide at age 5. Yeh, we really had to do it up. Took him sheet and bedspread shopping too.
Son #2, we moved into a toddler bed earlier (yay), but he wasn't really happy until he got into a "big boy" bed (with bed rails). Not sure exactly sure when we took down the toddler bed but he was all ready 2 and not yet 2 and half.
If you get a "car bed" or something else he's into, he may be old enough that his excitement over having "his own special" bed does the trick.
I still have one baby in the bed (he moved out of the co-sleeper & into my bed at 8 months too!). I am about done sleeping with babies, but like you, with me being the one working and the one nursing, I just had to do what I was capable of. I do like co-sleeping - I am just tried. BUT, I know this year will go by past. And based upon past experience, somewhere between 18 and 28 months, we'll be able to relocate him.
(I was going to fix all the typos, but since it's from the exhaustion that has me looking forward to him sleeping on his own more, I decided to leave 'em in - personally, I think if YOU are not done co-sleeping, it's not over. Me? After almost 7 years of bed-sharing, I know I am done)