EA help

I want to test out a few strategies in Metatrader. I can do some basic programming but would like some help creating a basic EA that I can modify to test my strategies. The following are some of the basic information I will need programmed:

Buy or Sell: Based on the high of a previous bar closing above or below an indicator like a moving average. For example, if the moving average is at 1.2500 and the previous order was a sell and the price closes at 1.2512 and the high of that bar was 1.2523. As an external option, I want to enter an order based on 1.2523 plus an extra value, let's say 30 pips. So the entry value would be 1.2553. This will also become the stop loss of any sell order if there are any left opened.

Let's say price does not reach our target but the close of the next bar is still above the current moving average. If the high of that bar is higher than the 1.2523, we stay with the same entry price of 1.2553. If the high of the previous price is lower, let's say 1.2520, then our new entry price would be 1.2520 + 30 = 1.2550. If price ever closes below the moving average, all entries will be cancelled.

2nd order: I would like the option to enter a second order. Let's say our stop loss is 60 pips and price drops by 30 pips, I would like the option to place a second order with the same stop loss. The lot size would be a percentage of the original lot size of the first order. Take profit would need 3 external amounts.

Take Profit: Should be hidden. There should be up to 3 take profit levels based on 1/3 of the lot used. This can be entered as 3 separate orders placed at the same time.

Stop Loss: Should be hidden. Stop loss should be based on entry price less an external option amount.

Trailing Stop: This should be based on the movement of the indicator. If the indicatory moves 5 pips towards the take profit direction, then the stop loss should be moved by 5 pips at the start of the next bar.

Lots/Money Management: I would like to have two options in this

The code should be mq4 and fully customizable by me.