Nope, I would try and cut the liner off in a way that you can reuse it with the insulation for your HLT and MLT with the BK if building a fully electric brewing system after you've added your fittings to the main internal tank. Great find.
Another member app 2 years ago posted swimming pool filters that the paint was removed and polished up the stainless with a capacity of 30 gallons each. I recall they had a rocker top and bottom. This another option also. I would grab all you can of those oxygen tanks someone will buy your extras in a heartbeat. Keep a couple spares for any future builds or modifications as they would look sharp being the same size and brand three in a row. Lucky find grab 'em. The ones I see are on the back of welding supply trucks not for my personal use. At one time I saw 11 of them at the hospital I was remodeling down in the basement storage area for over a year sitting in a room full of useless crap. I didn't ask they vanished one day, I believe someone snagged them and I have a pickup. Missed out on that one. Got 3 pony kegs from a Round Table fire job plus 20# bottles, manifolds and regulators unburnt out of the dumpster, I dumpster dive on my job sites. The pipe fitters gave me a Victor ball flow gauge with regulator free it only needed a regulator rebuild kit just for the asking. Lag you lose many times.
Scrap collecting bums in town I know will come up with many AB or other kegs but I know the AB driver and get them free off him not these stolen from bar kegs by bums. Hell I was given a Jack Daneils 15.5 keg, ya know Jack made bier? (94 to 97 only). I get the odd non AB kegs free, Lind Brewing, Full Sail. Ebay was ok the shipping kills the deal for me. Hit the local college frat houses, my friend offered $150 and got 11 kegs out of the backyard. My new neighbor found a AB keg overgrown in the thick blackberry fence stuck there from 6 years ago a freebie to me.
Sad part I saw tons of 15.5 kegs and cornys being shipped aboard at the Port of Pakland with Hong Kong or China the ships home ports. LHBS saw this and bought out suppliers then trippled the prices a instant profit off us. Grab the wifes stash money and buy all of them.