I found one at a better price than the one I talked about last week. Yes a 22.5, will need a link to the mods you made on yours.
Did 5 mods to my 22.5” WSM...well worth the investment. Of course I won my 22.5” in a local Marine Corps Detachment raffle, for a $10 ticket. Not very costly for all the mods...
1) buy another, exact charcoal grate, run it perpendicular/cross ways to the original grate...Amazon is your friend here. I tied both my grates together with stainless steel wire in four areas around the perimeter (N,S,E,W) pulled/looped tight then twisted, snipped with dykes. I used .032 diameter SS wire.
2) buy 3” stem locking casters, or 4”, for the bottom legs...Harbor Freight. $15 bucks. You’ll need that crazy ass 1/2” fine thread nut for the castors. If you can’t find any, holler at me. It’s not a common 1/2” fine thread, it’s even a finer thread...can’t even find them in Lowe’s or HD, in their Hard To Find Hardware vidmars. I bought a box of 50 for about $12 from Amazon. Could of bought six, but they wanted $8 for the six. Simple math there...
3) buy two black door pull handles for the center cylinder...pattern them out, drill, bolt on.
4) and 5)...go to Cajunbandit.com ...buy the lid hinge and buy the center cylinder lock kit. They offer a cylinder lock kit with 2” caster deal...just buy the cylinder lock kit, get bigger locking casters elsewhere...see above. Cajunbandit is kinda pricey, I think right now they’re running 10% off...they’re literally the only company who does mod’s for the WSM’s. Check their site out...you’ll see some neat things. I put a Lava-Lock gasket on my aluminum access door, but they sell stainless steel doors for access to the coals/water pan that seal pretty good from the reviews I read, without the use of a gasket.
Cajunbandit has several mod’s for the WSM’s. What I did to mine is pretty much basic and it makes it one helluva smoking/mobile machine.