We already have Reserve Armd/Cav units co-located, or almost co-located, with Reg F Armd units in some cases. This shouldn't be difficult to arrange.
I'm not sure how you'd describe "co-located, or almost co-located". Rough driving numbers according to Google Maps. Is 4 hours or more driving time really feasible for regular weekend exercises to learn and maintain fairly complex skills?
Saskatchewan Dragoons - over 4 hours drive to either Shilo or Suffield. 5-1/2 hours to Wainwright. 7+ hours to Edmonton
Fort Gary Horse - 2-1/2 hours to Shilo
British Columbia Regiment - 12 hours to Edmonton
British Columbia Dragoons - 9+ hours to Edmonton
South Alberta Light Horse - 0 hours to Edmonton (5+ hours for Medicine Hat & Lethbridge Squadrons) or 5 hours Edmonton to Suffield
King's Own Calgary Regiment - 3+ hours to Edmonton, 2-1/2 hours to Suffield
1st Hussars - 3 hours to Meaford, 6 hours to Petawawa
Windsor Regiment - 4-3/4 hours to Meaford, 7-1/2 hours to Petawawa
Governor General's Horse Guards - 2-1/2 hours to Meaford, 4-1/2 hours to Petawawa
Queen's York Rangers - 2-1/2 hours to Meaford, 4-1/2 hours to Petawawa
Ontario Regiment - 2-3/4 hours to Meaford, 4 hours to Petawawa
Royal Canadian Hussars - 3 hours to Valcartier, 3-3/4 hours to Petawawa
Regiment de Hull - 1-3/4 hours to Petawawa, 4-1/2 hours to Valcartier
Sherbrooke Hussars - 2-1/2 hours to Valcartier
12e Regiment Blinde Canada (M) - 1-1/2 hours to Valcartier
Halifax Rifles - 4 hours to Gagetown
Prince Edward Island Regiment - 3-1/4 hours to Gagetown
8th Canadian Hussars - 1-1/2 hours to Gagetown
Based on the above numbers I'd think that you could have the following Regimental pairings that might be workable:
Lord Strathcona's Horse (Edmonton/Wainwright) with South Alberta Light Horse and King's Own Calgary Regiment
Royal Canadian Dragoons (Petawawa) with Regiment de Hull
12e Regiment Blinde Canada (Valcartier) with 12RBC (M), Royal Canadian Hussars and Sherbrooke Hussars
Combat Training Centre (Gagetown) with 8th Canadian Hussars and possibly the Prince Edward Island Regiment
If we moved tanks into Shilo they could work with the Fort Gary Horse. Meaford would be convenient for a number of Ontario regiments, but is there even any capability of using that for tanks?
The problem is we don't have any tanks in Petawawa, Valcartier, Shilo or Meaford so establishing anything there will incur infrastructure expenses and there are questions of whether any of these areas are really suitable for combined arms training. So that really just leaves you with Edmonton and Gagetown right now which are really only convenient for regular weekend training for a grand total of 4 of our 18 Reserve Armoured Regiments.