If you want to go cheap, you can buy really cheap 32T N/W chainring for about $5 from China.
You can buy a chain guide to keep the chain from dropping and keep your current RD and shifter
Would need a wide range cassette which you would pick up for about $50?
Only other thing you may or may not need is a goatlink.
My Talon has a clutch RD but even with it on the off position, I have dropped the chain only once or twice.
looking at the $$$ I'm gonna just buy a 1x11 kit and be done it since buying that stuff puts me 60% there and I get a new derailer and spare crank.