If you can't switch docs, you may be painted into a corner. I'd just be assertive with him, and say "Look, I'm a big boy, I can self-inject. Just let your nurse show me how." When you say this, do NOT get in a discussion of how many times per week. Just agree with the doc on total dosage, and anything else he says. At home you can then break it down as desired, as long as you don't exceed the doc's total dosage. I would not exceed 100mg per week to start. 200 a week especially is too much as a starting dose. Sometimes less is better than more, cause if you use too much your estradiol may get too high, as well as your hematocrit.
You probably will not want to use the massive 21 or 23 gauge 1" or 1.5" needles they'll give you. Just accept them and keep your mouth shut. Then buy you're own. I use 25g 5/8". 5/8" is the minimum length for intra-muscular injections. Or you could read the info available on sub-q injections that use even smaller needles.