Have over 150K stock trades with over 10mil sales volume (but with small profit), cannot be imported into TurboTax, what do I do?

After talking with a TurboTax CPA, he advised me to report summary totals (is this possible with over10mil in sales volume?) and print a .pdf file of my 1099 form from my broker and mail it in.  Does this make sound like a feasible approach to others out there?  Also, does TT allow for attachment of a 1000 page .pdf file in lieu of importing transactions or having to print?  Will the IRS accept this as similar to a Form 8949?  I really am in a pickle on this one, and I can't imagine I'm the only one with all the stock and crypto algorithms and traders this year.