Manual ecu? no such thing.
Did mine about 3 years ago now, Best thing since fried rice.
First get the pedals, master & slave cylinders, shift linkage, tranny and driveshaft from a manual donor car. Expect to pay anywhere up to 500$ for all that used.
I'd order a new clutch kit, rear engine seal, and basically all the shift bushings, spacers, and mounts that you can. If you're keeping the engine in the car while you're doing this it's easiest to do on a lift. Unbolt the auto mounts and let the engine and tranny hang down this will give you some form of access to all the bolts that mate the tranny/engine. Aside from that you'll need to get those 2 starter bolts off... (getting them on is more fun). You'll need 2 sizes of female torx sockets to get this stuff off.
Aside from all that, the crappy part will be the exhaust, have all new hangers and bolts. I seriously just cut mine off and put new bolts everywhere... saves hours.
You'll need a clutch alignment tool or the spline end off another transmission, to line the clutch disk before tightening and mating to the engine. You'll also need to bypass the park safety switch with another wire that's easily found in the shifter area... I think it's blue and white.
For parts, not sure in Montreal... but Ottawa has Duss Brothers. And Alymer Que. has Peices d'euro. or something like that.
In total it cost me about 1400, I rented a lift for 2 nights, 75$. Not bad considering most shops wanted about 1500$ to throw in a used automatic.
Good luck and if you really want it, buy the parts in managable chunks, makes it easier to afford.