In my opinion it's better to buy bitcoin in order to qualify for this fork. Bitcoin price will not be affected by this fork price. On the other hand zcl price will drop. Also, there is no guarantee that combine zcl and bitcoin private combine price will be higher than zcl price now. So it will be gamble for zcl holders and free money for btc holders.
Where is the guarantee that btcp will be listed on a high-volume exchange before april 1st 2018? I say there will be a huge panic sell on zcl, then miners with old cards (7950 & 280x) will shut down all their hardware... there will be a lot of older gpu available, and maybe the retail prices for newer gpu will go down as well...
The mining prices don't look good for after that fork, miners will run away from zcl into the zec, then will panic because of the increased difficulty... Since the difficulty will go up on the profitable coins and we'll lose zcl (low price) & zec (too difficult), hush (difficulty varies too much), btg & komodo (difficulty too high compared to whattomine results)...
recession is coming and will last for at least 2-3 months until bitcoin recovers to usd $18,000.