Paying some scumbag start-up for your training is a really big red flag. Especially on a 74 classic. The -200 type rating is different from the -400 and next time fuel spikes, the -200s are beercans and you've just paid a lot of money for a worthless type rating. Of course the company officers are probably making personal kickbacks.
My advice is "don't do it." Take a look at what's happening to Midex. Started out fairly benign, but now rostering and the company are sliding into the abyss.