Also as a heads up Tech diving is very expensive even if you do it on the cheap. Just the right equipment is atleast 5000 prior to any training.
Ive spent 1500 (drysuit with required things)+600 (undergarments)+1000 (dive computer and backup computer)+2000(regs+tanks)+700(BCD)+800 (lights)+ probably another thousand of Misc (boots, hood,DSMB, backup masks and knives etc).
Buying a deco bottle with regulator would probably be another 500-1000 or so. Then Nitrox and O2 Decompression fills is more expensive than air. If you want to do wreck or cave then you are adding some lines/reels, extra lights.
As you progress into the 50m longer deco if you intend to dive in Vancouver you will probably want heated undergarments (500-1200) + Battery for them (800-2500)
If you are already diving well and dont need a foundational course training costs are approx
Advanced nitrox + Decompression (1600-1800 CAD) [45m deco]
Extended (800 CAD) [50m]
Normoxic trimix (1400 CAD) [65m]
Full cave with minimum training days would be (2000-3000 USD)
Advanced wreck (2000+ CAD)
I will spend 10000 CAD on diving this year to get ANDP and Full Cave + Required gear (not including flights, accommodation etc