Well, you could try the log... Worst case is you're out some time, and get annoyed by it.
Start trolling Craigslist, or FB Marketplace and search for "weight". There are a number of units near me that I've been eyeing up to deal with ballast issues I have... A couple old small crane counterweights (800# each), and some stacking weights the guy listed as for a JD, also in the 800# range (never seen them before).
I did just finally snap a couple days ago, and just ordered a pallet of MF suitcase weights from EA... Not the cheapest solution, but they'll just hook on, and the folks selling used suitcase weights around me seem to think their units are gold plated... I'm getting 13 new delivered to my company for what one guy wanted for 6 used and he was 2+ hours away...