I don't know what site that is I linked above but I'm sure you won't get robbed lol. Amazon must have multiple options. Or apparently Dicks Sporting Goods sells an olympic sized loadable DB. Or you can literally go with the most expensive and high quality option:
https://www.roguefitness.com/rogue-...MI0eCDjcfz6wIViuKzCh3asgirEAQYAiABEgIrZPD_BwE
^ and it's going to run you 270 dollars + probably 10-20 dollars max on a pair of collars from Amazon.
So quite literally you can get a pair of DB handles from Rogue for 38.5% of the price of the Ironmaster brick. Obviously going to be higher quality, and the loading on their site says ~100lbs. That seems low to me, but I'm sure you could get away with putting 110-120 on there and not having a problem at all. Probably more.
The main point here is that 700 dollars is very fucking expensive imo, especially for something that is going to limit you to 75 lbs. Also seems like a huge waste of budget to me, especially when you're getting a ton of olympic plates to begin with.