Just get a heat sheild then, if the pipes look too long.You want a lug get a 590 it will cost less probably than a 88 plus bastardizing it.
I'm getting one of these myself (20"). Even got a 1918 brass knuckle trench knife to go up on the wall with the 590 i planned to buy (I know 590 was not WWI era, but close as I could come). But what the hell. 8 shot (so 8+1?) 20" pump, will do the same thing as an 870 or Benelli. Overlooked a shotty in my budget plan, I could afford this, put it under home insurance. Plus, 88's my lucky number.
Their persuader version is 7.00 cheaper. Bet thats a big seller LOL