I am looking to converting my glow 40 size Swamp Buggy to a electric motor etc. I will need recommendations for an motor and ESC.

Are you talking about THE Swamp Buggy, from Dumas? (it seems like it).. any .25 to .32 electric motor will do. Rimfires are out of (new) production, but there are still being posted on for-sale forums, otherwise look on eBay or Amazon for outrunner 28mm (diameter) motors. Their KV will tell you two things, 1) how many cells (try KVs for 2 to 4 cells motors) and also will tell you 2) propeller size. Check your clearance.