Is it worth it to sell VGT to buy VOO?

In my personal brokerage account, I have a little over $100k invested in VGT (expense ratio 0.1%). My goal is long-term investing for the next 30 years or so. VOO gives me about the same rate of return but at an expense ratio of 0.03%. To keep numbers simple, assuming I have exactly $100k invested with 10% annual rate of return and I never invest another cent. In 30 years I would have ~$32k more if I had invested in VOO instead of VGT. I do however intend to continue contributing funds into this account, so the difference in earnings between VGT and VOO would only increase from there.

I believe it is worth it to sell VGT to purchase VOO. But now, how can I optimally reduce capital gains tax in selling and purchasing a different ETF? I have held VGT for over 1 year. This will be my first time selling a large amount of ETFs (or any stocks for that matter), and I'd also like any advice on other factors to consider during this sell. I know selling all at once then buying all at once is likely not the best strategy…Do people set up increments of automatic buy/sells at specific prices?